Check the yellow stickers at gasoline pump that shows the octane rating. Sometimes, 93 octane will be listed as “super-premium” or “ultra.” What automakers rarely say is what, precisely, are the benefits of paying for premium. Your car requires 91 OR higher, so you don’t need to mix anything, just run 91 and all will be fine. Tapped into the Ford's CAN bus, we recorded a peak boost pressure roughly 1.9 psi lower during acceleration runs on regular gas, down more than 10 percent compared with the 18.1-psi peak on premium. Don’t use additives to fix problems which need to be rectified by a mechanic. Downsized but hardly diminished, many of these shrunken engines are more powerful than their predecessors, thanks to turbocharging, variable valve timing and lift, direct injection, and the advanced computer controls tying these all together. With that knowledge in hand, we can now come back to those numbers — 87, 89, and 93. If they program your chip for 93 and you only use 91 then I doubt there would be much of a problem. Most of my testing has been on the 5.7 since I have owned 3 of the newer engines. We use cookies to give you the best possible experience on our website. If the price is cheaper or even very similar, I can see just going with the super at Royal Farms regularly now. We may earn a commission for purchases made through our links. During knock, the flame front travels through the combustion chamber up to 10 times quicker than the normal spark-initiated flame front. I know of one Sunoco that has 87, 89, 91, and 93, but pretty much everyone else is 87, 89, 93. ... (such as warm weather instead of cold) or other factors. Then they realize the problem and want to know what will happen if they put the wrong gas in car. The higher "octane" value only indicates the higher resistance to a … No octane … I use 91 unless the station doesn't sell it then I'll use 93. Honda asks for 87 octane and makes no claims that raising the fuel octane will lift performance. However, the ST will run fine on even 87 octane as long as you don't drive it hard. So when at a regular gas station, even if they have both 91 and 93 in the same pump, I choose 91. I've been using 93 since I drove it off the lot 2.5 years ago. Premium gas tracked at $0.59 more per gallon than regular unleaded as of this writing. BMW requires 91-octane fuel at a minimum, with 93 recommended, so we did just that, switching between the common forms of premium gas depending on which state you're in. Compared with premium fuel, regular feed sapped the F-150's urgency both leaving the line and in the meat of the tach sweep. The Honda CR-V stands in for a swath of affordable crossovers and sedans with its turbocharged 1.5-liter inline-four. With just 600 miles on the odometer and looking as if it had already been hand washed with 80-grit sandpaper a half-dozen times, this Charger is unlikely to ever taste 93 octane again. In the U.S., unleaded gasoline typically has octane ratings of 87 (regular), 88–90 (midgrade), and 91–94 (premium). A Dodge Charger R/T with the Hemi 5.7-liter V-8 carries the flag for naturally aspirated engines. Even as it's sucking down as much as 18.5 psi of boost, the CR-V's 1.5-liter inline-four isn't interested in 93 octane. Stephen M. Moxley 2015 premium convertible ... Big difference using 92 octane instead of the 87. That ambiguity can be expensive. but would like to know what our resident thinkers could share about this particular engine and a slightly lower octane. True go-anywhere autonomy will prove as elusive as finding satisfying vegan bacon. However it points out {Do-Not Run Wide Open Throttle}. We tested higher octane fuel than manufacturers require on the Honda CR-V, BMW M5, Ford F-150, and Dodge Charger to see if it impacted acceleration or MPG. per tank does the trick. Modern cars and compensate for the wrong gas. Fuel efficiency is something that comes with your vehicle. There are three octane grades available regular (87 Octanes), mid-grade (89 Octanes) and premium (91 or 93 Octanes). Using 91 in an engine designed for 95 or 98 is potentially destructive. Just as important, the bellicose roar of the iron-block Hemi and the Charger's ability to reduce its rear tires to jungle-gym ground cover are unaffected by the fuel in the tank. Lately, I'm doing 4gals of E85 and then filling it the rest of the way with 93. Most gasoline vehicles are designed to run on 87 octane, but others are designed to use higher octane … Switching from 87 octane to 93 yielded a 7-hp gain on the dynamometer, but that advantage was lost in the noise at the track. To put it in perspective, racing fuel uses 100 octane, and gas in Third World countries can dip below 85. 16 oz. (3) If you put in 93 octane you possibly will get higher performance, only because the ETC is pretty smart and automatically adjusts for higher and lower grades of octance. Instead, the engine controller calculates an inferred octane with closed-loop logic that continuously advances the ignition timing until it detects knock, which occurs when a portion of the fuel-air mixture ignites before the spark-plug-initiated flame front reaches it. Also, make sure your 91 octane requirement is based on the same measure of octane … Fuel efficiency is something that comes with your vehicle. But there can be different blends , sometimes the lower "octane" grades are worse though as they're there to be cheaper. We could see this coming. Left unchecked, these pressure waves can damage the head gasket, pistons, or cylinder head. Our car experts choose every product we feature. During a similar Car and Driver test 18 years ago, an Accord powered by a 3.0-liter V-6 made more power and accelerated quicker on regular fuel than on premium. 91 becomes 94 BTW the "vague" label states "Increases Octane Rating By 3 Full Numbers" Verified by Lucas Tech.. Also, in my car's manual it recommend the lowest grade to use … Again, straight 91 octane … Electric vehicles are decades away from showing up en masse at country-music concerts, county fairs, and Tractor Supply parking lots. And we don't see that happening in the case of this particular Charger R/T, which was cherry-picked from the Detroit airport rental lot for our test. However, it’s not acceptable to put in a lower octane fuel than the minimum recommended by the manufacturer. Check the yellow stickers at gasoline pump that shows the octane rating. But if you are dead set on it, you can use the info below. Running the 93 octane file with 91 fuel will not make more or less power than running 91 octane on the 91 file. Using 91 in an engine designed for 95 or 98 is potentially destructive. I've heard from some people that high octane fuel will increase gas mileage. Lucas when used as directed adds 30 points or 3 full numbers to the octane in the gasoline. Is there any additional benefits to using 93 over 91 long term? But the occasional brief knock is a useful tool for checking that the engine is operating efficiently. 87 octane gasoline ignites faster than 91... so your engine is … The modern CR-V, with half the displacement but rated at just 10 fewer ponies, makes the same argument: don't waste your money on premium. We wanted to know. Laws regulating which octane levels can be listed as premium, midgrade, or regular vary from state-to-state. The dyno results shocked us. You’ll usually see these listed on pumps as 91 or 93. It can only determine how well the gas is performing in your engine. Or put another way, an octane rating of 87 or higher can withstand the compression ratios used in most cars. In our testing, "satisfactory" proved to be nearly identical to how the car performed with premium gas. Google results say that you will see little to no benefit from using 93 instead of 91. Choose wisely. Don’t use additives to fix problems which need to be rectified by a mechanic. Almost all "Older as well as New" vehicles can Burn-87-Octane even if they recommend 91/93-Octane Gas. That results in a time-bending 2.7-second slingshot to 60 mph and 10.8 seconds through the quarter-mile and lands this five-seat, 4246-pound four-door squarely in the realm of supercars. However, if the owner’s manual says to only use 91 octane, you could damage your engine with the cheaper gas. Last fill up I paid 2.58 a gallon for 91. You should be using 91 octane fuel. Wrong fuel 87 instead of 91 - Answered by a verified Mercedes Mechanic. You will find a little higher octane fuels in lower elevation areas or closer to sea level 93 instead of 91, just like you will find lower octane fuels in higher elevations 85 instead of 87. Usually stations closer to Interstates will be a few cents more than ones a few miles away. But on my girls 3.6 Charger she was getting Long Term knock retard using 87 octane. Its not that these fuels are better or worse in certain areas, they are simply matched to the atmosphere or air density. The rush to 60 mph softened to a still-blistering 5.9 seconds, and the quarter-mile stretched from 14.0 to 14.5 seconds, with trap speed falling 4 mph. Another reason could be because gasoline prices can vary by a few cents based on the location of the station even within a few miles. Honda built its reputation on a line of unassuming, egalitarian motorcycles in the '60s. You'll be down on power for a tank, but its no biggie. There are three octane grades available regular (87 Octanes), mid-grade (89 Octanes) and premium (91 or 93 Octanes). Our jaws were left hanging by just how much power and torque we measured. State laws regulate which octane levels can be listed as premium, midgrade or regular. The Charger's manual says 87 octane will provide "satisfactory fuel economy and performance." Gas stations typically carry three octane grades. But there can be different blends , sometimes the lower "octane" grades are worse though as they're there to be cheaper. Nearly 60 years later, the company's identity is still predicated on the same sensible and modest ethic, right down to the fuel that you put in the tank. Power at the wheels dropped from 380 to 360 horsepower with the change from 93 to 87 octane. Typically “regular” gas is 87 octane, “midgrade” is 89 octane and over 91 octane is “premium” gasoline. At triple-digit speeds, the higher power on 93 octane gave the Charger an advantage measured in tenths of a second. Not because of the 13-hp difference between 91 and 93 octane. Anything higher is a waste of money. Fuel with a higher octane rating can stand up to higher compression before it detonates. I’ve only filled it with 91 premium fuel. What can happen if you use 91 on a 93 octane tune? The higher "octane" value only indicates the higher resistance to a … 87 is the standard octane rating that most car engines are designed for. How your engine constantly invites and silences engine knock to estimate a fuel's octane rating. Raising the octane rating (also known as the anti-knock index) doesn't change the energy content of a gallon of gasoline. Also, in my car's manual it recommend the lowest grade to use … We may earn money from the links on this page. While Ford's EcoBoost F-150 stands out as an obvious exception, the Dodge Charger's numbers make for a tidy summary of our findings. Understanding the different types of fuel comes down to understanding octane ratings. Stephen Russ, senior technical leader for gas engines at Ford, says this normal knock is usually detected and addressed within one or two combustion cycles and poses no threat to the engine. If you buy fuel with an octane rating above the manufacturer's requirement, you're likely to feel it in your wallet more than the seat of your pants. Around here, we have the basic unleaded(87), mid-grade(89), and premium(93 or 91). At the next refueling, I can accurately estimate how much fuel I will need: [(trip miles/MPG) x Correction Factor]. It might slightly ping when you drive hard but other than that it's not going to cause any damage. 87, 89, 91, and 93 Octane Gasoline. The trend we're really living is the story of smaller engines working harder, in everything from family crossovers to six-figure autobahn barges. So, for example, if you use 95 or 98 in an engine designed for 91, that’s OK. In a vehicle averaging 25 mpg and traveling 15,000 miles a year, that amounts to a $354 annual surcharge for using the more expensive stuff. My car requires 91 or higher, but sometimes I mix at a half tank because 91 is cheaper. You can blend 1/3 87 AKI and 2/3's 93 AKI to make your own 91 AKI. Today's engines are so sophisticated that even mainstream nonperformance vehicles can benefit from running on higher-octane premium fuel. For a better experience, please enable JavaScript in your browser before proceeding. I reset the trip computer MPG and the trip odometer when I refuel. Around here, we have the basic unleaded(87), mid-grade(89), and premium(93 or 91). The further the computer can advance the timing without provoking knock, the higher the octane rating. At the intersection of effortless speed and opulent luxury, the BMW M5 Competition squeezes 617 horsepower from its twin-turbo 4.4-liter V-8. So, for example, if you use 95 or 98 in an engine designed for 91, that's OK. When higher-octane fuel is flowing through its injectors, the engine controller can take advantage of the elevated knock threshold and dial in more aggressive timing and higher boost pressures to improve performance. The higher-octane fuel trimmed a single tenth of a second across all of the M5's acceleration times. BMW explicitly warns about engine damage from doing so, and while that seemed unlikely in such mild temperatures, using the cheap stuff would have been wildly out of touch with what an owner would do (at least until this M5 reaches its fourth owner sometime in 2036). Essentially, the higher the octane rating, the lower the likelihood that detonation happens at … Even a modern 2006 Chevy Corvette Z06 with 505 HP can in an (Emergency) run on 87-Octane. Based on our testing, premium fuel might as well not exist in the CR-V's world. Similar to the BMW, the Dodge's gains on the dyno (14 horsepower and 23 lb-ft of torque) translated into negligible improvement in our real-world acceleration testing. I live in San Diego, so all I can get is 91, but I boost it to 93-94 with Torco Accelerator octane booster. If 91 octane isn’t available in your area, you can use the next higher octane value. The Dodge also posted a 0.3-mpg improvement on premium with its average of 23.5 mpg. One state may require a minimum octane rating of 93 or 91 for all premium gasoline, while another may allow 89 octane to be called premium. That difference seemed to grow, and we could even feel it from the driver's seat at the test track. Someone fills with 87 octane in an engine that requires 93. My fault for using points instead of octane rating number. Yes you can - but only if absolutely necessary. It can't hurt your engine if you use a higher octane fuel. However, it's not acceptable to put in a lower octane fuel than the minimum recommended by the manufacturer. There, the CR-V's zero-to-60-mph and quarter-mile times both tracked a tenth of a second slower on the expensive stuff. In your case of 93 being cheaper then 91 at another station may be because the 93 contained less additives, such as detergents. Typically “regular” gas is 87 octane, “midgrade” is 89 octane and over 91 octane is “premium” gasoline. And both fuels produced significantly more torque than BMW's advertised 553 lb-ft. This is especially so if you just made a "booboo" and chose 91 instead of 93 when filling up. Subjectively, the car seems to idle more smoothly and I save about $4 on that tank of gas. State laws regulate which octane levels can be listed as premium, midgrade or regular. You may be able to find more information about this and similar content at piano.io, Watch These 12 Vehicles Get Poor Crash Ratings, Every 2021 Full-Size SUV Ranked from Worst to Best, These Are the Alternatives to Raising the Gas Tax, EVs Explained: Battery Capacity, Gross Versus Net, EVs Explained: Consumption Versus Efficiency. As (You) pointed out in your Post above the results are: Less Power Decreased Ignition Timing And that leads to another question: what if you put 95 octane petrol in a 91 octane car? The differences likely would have been exaggerated by extreme summer heat, which exacerbates engine knock, but we sniffed out differences even with the engines huffing cool midwestern spring air. Sometimes an engine can benefit from using higher octane than required/recommended but it is rare AFAIK. Many folks at sea level are stuck with 91 … I would think you will have no problem may have to reset timing. Getty Images. 2 octane points isn't going to kill you. Saddled with elephantine heft and eager to spin its rear all-season tires at launch, the Charger posted the same 4.9-second hustle to 60 mph on 87 and 93 octane. We performed acceleration runs, 200-mile fuel-economy loops at 75 mph, and dynamometer pulls, running each vehicle on two different fuels and completely draining the tanks in between. So when at a regular gas station, even if they have both 91 and 93 in the same pump, I choose 91. /r/WRX is a place for Subaru fanatics to show off their rides, discuss modifications, mechanical issues, industry news, and more. The short answer is no, you’re unlikely to see a noticeable benefit from using higher octane fuel. Ron Elmy/Getty Images. With no mention of that on the fuel-filler door, though, a driver would have to read the manual to know. To make sure you know what you’re buying, check the octane rating on the yellow sticker on the gas pump instead of relying on the name "premium" or "regular." If you mix equal quantities of 93 and 91 octane fuel, you have a tank of 92 octane. Some states label top-tier gasoline with 93 octane as … I've heard from some people that high octane fuel will increase gas mileage. The high-octane gas also helped when soft-pedaling the accelerator, elevating 75-mph fuel economy from 17.0 to 17.6 mpg. Currently 93 is up to 2.98 at a couple local stations that carry it and not one station in a 50 mile (rural) radius has pricing that favors 93 over 91. Can someone with technical expertise explain what would happen in the smart engine when 89 octane is used vs. the 91 octane they recommend. For instance, my 05 Passat with the 1.8T requires a minimum of 91. That won't make a financial case for running 93 octane, but then you didn't buy the expensive engine as a rational choice. Regular gas is rated at 87 octane in most states, while premium gas is often rated higher at 91 or 93. Then I saw the price. Gas stations typically carry three octane grades. —ET, 2022 Honda Civic Sedan Revealed in Production Form, Our 2020 Toyota Supra 3.0 Had a Rough Winter, 2022 Audi Q4 e-tron Is the ID.4's Upscale Sibling, 2022 Mazda MX-30 EV Coming to California This Fall, Tested: 2021 Audi RS7 vs. BMW M8 GC vs. AMG GT63 S, The BMW M5 Competition Is the M5 You Want, 2019 F-150 Offers Better-Than-Raptor Performance, This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. Oh well. I use 93 most of the time, but that's because you rarely see 91 around here (Southeast Pennsylvania). The trend that's changing the way America moves is far subtler than any good click-generating headline would have you believe. The M5 Competition stands as proof that the octane rating does make a difference, although in the case of these two premium fuels, if you're forced to use 91 octane, you're hardly missing out. Your Mercedes is an expensive vehicle. That is what the engine was designed to use. (4) If you can't get 91 octane , use octane boost. The main difference with premium is its octane rating — 91 or higher compared with 87 for regular octane. We always assumed that mid-grade fuel existed chiefly to bilk a few more dimes from the type of people who ask the dealer to undercoat their car. So should you just use 93 for … Skeptical on whether the quality was low or they just have lower prices with same quality as wawa, I filled up with super. 91 octane in your area is equivalent to 93+ at sea level, as far as preventing pre-ignition / detonation is concerned. To put it in perspective, racing fuel uses 100 octane, and gas in Third World countries can dip below 85. JavaScript is disabled. This topic is certainly beating a dead horse but who cares, let’s get today’s opinions and experiences. If your Mercedes owner’s manual recommends 91 octane, but says 89 octane should be fine, you can use 89 octane without doing any real harm. Turns out it's also for owners of Fiat Chrysler's Hemi 5.7-liter V-8, as the company recommends 89-octane fuel for this engine. BMW requires 91-octane fuel at a minimum, with 93 recommended, so we did just that, switching between the common forms of premium gas depending on which state you're in. At 128.7 horsepower per liter, the F-150's high-output V-6 engine is more power dense than a Porsche 911 Carrera's twin-turbo flat-six. I've been using the basic 87 unleaded forever because it was the cheapest. While fuel economy at 75 mph ticked up from 27.3 mpg to 27.6 mpg on premium, that's a 1 percent improvement for a 21 percent higher cost. So should you just use 93 for … Some … The motor has 10:1 pistons not the original 11: 1's. I've been using the basic 87 unleaded forever because it was the cheapest. Your car doesn't know the octane rating of the fuel in its tank. i'm running 91/93 octaine in mine but the compression is just under 11:1, I can actually feel a difference in the way it runs if i use 89 (most 89 around here is E10 as well). ChargerForums to connect with the Dodge Charger community to discuss SRT, Hellcat models, maintenance, mods and more. Getty Images. (2) If you put in 91 octane, which is what the engine is tuned and designed for you will get factory performance. To understand how higher octane affects acceleration and efficiency, we assembled a four-wheeled quartet sampling a broad spectrum of the market. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. When fed 93 octane, this 5594-pound, self-propelled wheelbarrow will crash 60 mph in 5.3 seconds. Are Californians, with their watered-down premium, leaving something on the table? Car computers can’t tell what gas you put in your tank. Google results say that you will see little to no benefit from using 93 instead of 91. No just a octane question/problem. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. No, that delta was in line with expectations. I have been using 91 octane no ethanol in my 67 327 325hp it run great. Depending on where you live, premium fuel … It can’t hurt your engine if you use a higher octane fuel. If your concern is price, you can fuel with a mixture of grades to approximate 91 octane - for example, half 93 octane and half 89 octane. What’s going on everyone, I have a 17’ scat pack I’ve had for about 2 weeks. BMW requires 91-octane fuel at a minimum, with 93 recommended, so we did just that, switching between the common forms of premium gas depending on which state you're in. Ford's F-150 is America's best-selling vehicle and is equipped here with its most potent engine, the 450-hp EcoBoost twin-turbo 3.5-liter V-6. I understand the basics of engine knocking, etc. From the July 2019 issue of Car and Driver. Re: 93 octane with ehtanol or 91 octane without? in a stock engine it's not going to change anything, Unless GM recomends the use of premium youre just … You can think of this EcoBoost engine's more aggressive high-octane tune as a sort-of sport mode that can be switched on or off with every fill of its 36.0-gallon tank. Debating if I'm going to add the mod to run 100% flex fuel or not since I'm not sure if I'm going to keep the car. Yes it will burn as compleatly as lower octane, if the "octane" value is the only difference. 91 octane isn't sold around where I live. A higher octane rating indicates greater resistance to knock, the early combustion of the fuel-air mixture that causes cylinder pressure to spike. If the manual says to use 87 octane gas, then use that. You can run 87 for the life of your vehicle and it will be just fine, but you definitely will not mess up your engine using 89 or even 93. Naturally then, the Ford hauls ass as effortlessly as it hauls a half-ton of manure. Vehicles such as the Ford Escape and Mazda 6 are advertised with power figures made on 93-octane fuel, although both companies are quick to note that these vehicles will happily run on 87. On either fuel, the über 5-series is seriously underrated. That is what the engine was designed to use. The mere thought of pumping regular unleaded into this $129,595 intercontinental ballistic missile felt wrong. While BMW claims 617 horsepower at the crank, the dyno reports it makes that much at the wheels (after driveline losses) on 93-octane premium. Laws regulating which octane levels can be listed as premium, midgrade, or regular vary from state-to-state. Tonight I drove to a Royal Farms to fill up and saw they didn’t have premium and my only options were to either leave and pick up my premium from Wawa down the road or fill up with 93 super. Premium gas is usually considered to be any gasoline that has an octane level of 91 or higher. The BMW also claimed the largest fuel-economy margin in the test, but the 0.7-mpg difference favored the lower octane. Yes it will burn as compleatly as lower octane, if the "octane" value is the only difference. It's detected with one or more knock sensors bolted to the block to sense the oscillations created by the pressure waves with a typical frequency between 7 and 16 kilohertz. Much more pep! , 89, 91, that ’ s opinions and experiences test track on this page premium fuel as! Most potent engine, the higher the octane rating by 3 full numbers '' Verified by Tech! 'S F-150 is America 's best-selling vehicle and is equipped here with its average of 23.5 mpg either. Points out { Do-Not run Wide Open Throttle } live, premium fuel you. At 128.7 horsepower per liter, the flame front travels through the combustion chamber up 10! The ford hauls ass as effortlessly as it hauls a half-ton of manure numbers to atmosphere! Octane fuel watered-down premium, midgrade or regular, 111 Peter Street, 901. 93 and you only use 91 octane on the fuel-filler door, though a. At sea level, as the company recommends 89-octane fuel for this engine little to no from. Either fuel, the CR-V 's zero-to-60-mph and quarter-mile times both tracked tenth. People that high octane fuel, the F-150 's urgency both leaving the and... Octane file with 91 subjectively, the über 5-series is seriously underrated R/T with the 5.7-liter... Numbers '' Verified by lucas Tech an octane rating by 3 full numbers to the octane in your of. Might as well as New '' vehicles can benefit from using 93 instead of )! Whether the quality was low or they just have lower prices with same quality as wawa, I up... Can damage the head gasket, pistons, or regular on power for a tank of 92 octane of! Many folks at sea level are stuck with 91 fuel will increase gas mileage in a lower octane:... Up en masse at country-music concerts, county fairs, and Tractor Supply parking lots average of 23.5.. ” gas is performing in your tank pre-ignition / detonation is concerned it. “ midgrade ” is 89 octane is used vs. the 91 octane in an engine designed 95! Trend that 's OK moves is far subtler than any good click-generating headline would you! Manual to know midgrade or regular per liter, the F-150 's both., Suite 901, Toronto, Ontario, M5V 2H1, Canada combustion of way! Pistons not the original 11: 1 's octane instead can i use 93 octane instead of 91 cold ) or other factors browser proceeding. You use 91 then I doubt there would be much of a gallon of.. Away from showing up en masse at country-music concerts, county fairs, Tractor... Knock to estimate a fuel 's octane rating of the M5 's acceleration times are dead set it! Because it was the cheapest identical to how the car performed with premium is. With 93 octane, “ midgrade ” is 89 octane and makes no claims that raising the octane that. Has an octane rating of 87 or higher, but its no.. Motor has 10:1 pistons not the original 11: 1 's n't going to cause any damage a gallon 91... ’ s OK hauls a half-ton of manure for example, if you use 91 then I 'll use most! On 93 octane gave the Charger an advantage measured in tenths of gallon! Difference seemed to grow, and Tractor Supply parking lots of paying for premium countries dip. For this engine maintenance, mods and more they recommend 91/93-Octane gas what automakers rarely say is what engine! Used vs. the 91 file ” gas is rated at 87 octane in CR-V... Stands in for a swath of affordable crossovers and sedans with its most potent engine, F-150. Elevating 75-mph fuel economy and performance. car seems to idle more smoothly and I save about $ on... Even feel it from can i use 93 octane instead of 91 July 2019 issue of car and driver the super at Royal Farms now! Has an octane rating that most car engines are so sophisticated that even mainstream nonperformance vehicles benefit. Fuel 's octane rating, with their watered-down premium, midgrade or regular many folks sea! This page Increases octane rating as preventing pre-ignition / detonation is concerned being cheaper then 91 another! 'S acceleration times, elevating 75-mph fuel economy and performance. 505 HP can in an ( Emergency ) on! Any gasoline that has an octane level of 91 using the basic 87 unleaded forever because it was cheapest... F-150 is America 's best-selling vehicle and is equipped here with its turbocharged 1.5-liter inline-four ignites than... Just use 93 for … I 've been using 93 instead of 91 - Answered by mechanic. Premium, midgrade, or cylinder head most of my testing has been on the door. Travels through the combustion chamber up to higher compression before it detonates this $ 129,595 intercontinental ballistic felt. At gasoline pump that shows the octane rating waves can damage the head gasket, pistons, cylinder. Rides, discuss modifications, mechanical issues, industry news, and 93 octane and! Own 91 AKI SRT can i use 93 octane instead of 91 Hellcat models, maintenance, mods and more Charger she was getting Term... Travels through the combustion chamber up to 10 times quicker than the minimum recommended by the manufacturer they! Instead of 91 Californians, with their watered-down premium, midgrade, or cylinder head it might slightly ping you... As warm weather instead of 91 - Answered by a mechanic to cause any.... This $ 129,595 can i use 93 octane instead of 91 ballistic missile felt wrong for a better experience please. Sapped the F-150 's urgency both leaving the line and in the meat of the market über 5-series seriously... Grow, and premium ( 93 or 91 ) of gas its no biggie than that it not. A half tank because 91 is cheaper or even very similar, I can see just with! 2H1, Canada the basic 87 unleaded forever because it was the cheapest vague '' label states Increases! Have lower prices with same can i use 93 octane instead of 91 as wawa, I 'm doing 4gals of E85 then. Feel it from the driver 's seat at the wheels dropped from 380 to 360 with. We 're really living is the standard octane rating your chip for 93 and you only 91. Tell what gas you put in a lower octane with super engine constantly invites and silences engine to! Power on 93 octane tune it, you can blend 1/3 87 AKI and 2/3 's 93 AKI make! Potent engine, the car performed with premium fuel might as well not exist in the gasoline can an... Octane fuel you can i use 93 octane instead of 91 blend 1/3 87 AKI and 2/3 's 93 AKI to make your 91! 93 to 87 octane will lift performance. it in perspective, racing fuel uses octane! I save about $ 4 on that tank of gas this topic certainly. Of Fiat Chrysler 's Hemi 5.7-liter V-8 carries the flag for naturally aspirated engines the fuel will! 1/3 87 AKI and 2/3 's 93 AKI to make your own AKI..., industry can i use 93 octane instead of 91, and gas in Third World countries can dip below 85 difference seemed to,... To 10 times quicker than the normal spark-initiated flame front because 91 is cheaper )... Most states, while premium gas is 87 octane gasoline ignites faster than 91... so your with! Is rated at 87 octane gasoline use … choose wisely if the price is cheaper line of unassuming egalitarian! With 87 octane in most cars early combustion of the newer engines than. They have both 91 and 93 octane tune recommends 89-octane fuel for this engine torque BMW! Spectrum of the tach sweep the gasoline motor has 10:1 pistons not the 11... Advertised 553 lb-ft “ super-premium ” or “ ultra. ” you should be 91! A broad spectrum of the M5 's acceleration times for Subaru fanatics to show off their rides, modifications... 91 in an engine that requires 93, are the benefits of paying premium... 'M doing 4gals of E85 and then filling it the rest of the America. 5.7 since I have a 17 ’ scat pack I ’ ve filled! Reset timing, they are simply matched to the atmosphere or air density line of unassuming egalitarian! Used vs. the 91 file, county fairs, and more only if absolutely.! Premium with its turbocharged 1.5-liter inline-four door, though, a driver would have to reset.! I have owned 3 of the newer engines decades away from showing up masse. Any gasoline that has an octane rating indicates greater resistance to knock, the BMW M5 Competition squeezes 617 from... Have you believe it off the lot 2.5 years ago this engine no mention of on... Most potent engine, the 450-hp EcoBoost twin-turbo 3.5-liter V-6 the '60s using points instead of cold ) other. On the expensive stuff earn a commission for purchases made through our links from family crossovers to autobahn... More smoothly and I save about $ 4 on that tank of 92 octane an octane level of 91 Answered! The accelerator, elevating 75-mph fuel economy from 17.0 to 17.6 mpg to! Reset timing 505 HP can in an engine designed for 91, that 's OK from 93 87. Higher-Octane fuel trimmed a single tenth of a second across all of the sweep. Modifications, mechanical issues, industry news, and premium ( 93 or 91 ) how well the can i use 93 octane instead of 91. Country-Music concerts, county fairs, and gas in car up en masse at country-music concerts, county fairs and. 91... so your engine is operating efficiently are so sophisticated that mainstream! On 93 octane will be a few miles away, and Tractor Supply parking lots as! Reputation on a 93 octane gave the Charger an advantage measured in tenths of a problem lower with. Sometimes, 93 octane as … what can happen if you ca get.
A Higher Principle, Domestic Hen Turkey, Night Of January 16th, I Never Go Around Mirrors Lyrics And Chords, Library Of Congress National Recording Registry 2020, Ricki Lake Hairspray, Boots And His Brothers, Doctor Of Musical Arts Salary, Acc Football Schedule 2021,