In the Rocky Mountain (high elevation) states, 85 AKI (90 RON) is the minimum octane, and 91 AKI (95 RON) is the maximum octane available in fuel. Simply put, if you mix 5 gallons of 91 octane pump gas with 5 gallons of E85, you get 10 gallons of a 96-octane fuel that’s very close to E50, or 50-percent ethanol and 50-percent gasoline. “If your car’s engine is a 1. Remember you are pushing about 1/3 extra fuel to make E85 work. September 17, 2023 06:12. 4L and 3. Octane as low as 85 AKI can be used in a pinch. (New Mexico has 86, 88, 91 because of the high altitude) The dealer was right, in fact, the mileage noticeably increased once I had lowered the octane to 88. If the opposite happens and you fill your regular gas-car with diesel, the damage may not be as bad. The fuel economy of your vehicle may also be affected. You can mix it, you just have to make sure your ethanol content is the same, or the lambda will change much like it does from winter to summer blends. Cost Savings Through Better Chemistry. As an example, for a tyre with the markings 205/55/R16/ 91V, 205 denotes the width of the tyre in millimetres, 55 denotes the tyre’s aspect ratio, which is the sidewall’s height given as a percentage of the. That’s the difference between all octane ratings at the pump actually; 87, 89, 91, 93, 95, and so on. So, unless you have an older vehicle with a carbureted engine, you should use the manufacturer-recommended fuel for your vehicle, even where 85 octane fuel is available. Put your insurance shopping on auto-pilot NOW and save money automatically every 6 months. The octane ratings of petrol available elsewhere may differ. You'll be fine. StageLeft No Lifer. I wonder if using 95 RON in an engine designed for 91 RON causes a loss of power. Cars that use premium fuels (with an octane rating of 95 or 98) are better off with that running through their engines, as they’re tuned to require high efficiencies from the fuel system. 2L engines. The ethanol-blended e10 (a mixture of up to 10% ethanol in petrol) is a substitute for 91 in most cars. In most cases it’ll just drive like crap. However, I called the dealer and they said that 88 is the best for the Prius. #7. Putting a lower octane fuel in your car is a no-no (see above), but fear not, as it won’t instantaneously kill your car. ”. From local news and events to. 86 octane would make me a lot happier though. Here in Cali the crap 91 we get really isn't true 91 octane. Is this a satisfactory substitute for 95 RON, or could I combine it with the occasional 95 or 98? Will a lower than recommended octane rating do any harm to the engine, reduce efficiency, or. Ethanol provides a cleaner burn than gasoline does. If you put 95 in a car that should run on 98 octane, this will not lead to mechanical failures, or breakdowns. This is a common belief, probably based on the commercials selling gasoline. Otherwise you are literally just wasting 10-25 cents a gallon depending on your gas prices where you are. just drink yourself $. I put 91 in my '12 Justa, personally. I also have no idea about how good it is to run that stuff constantly. Higher octane fuels don’t contain more energy. While filling up with Premium might sound like a way to pamper your car, there’s really no. 94 wouldn't be ideal, but you DEFINITELY don't want to use worse. Diesel cars can only take diesel. That means the parts will grate against each other and cause big damage. the SE came with 140 hp and 150 torque though. Generally, 93 is recommended for most German luxury cars anyway, but since you can only get 91 in some places they go with that as the minimum recommendation. The best type of gas to put in your vehicle is whatever octane level your car’s owner’s manual specifies. 88% ethanol. #11. s. 1923 posts · Joined 2002. Or put another way, an octane rating of 87 or higher can withstand the compression ratios used in most cars. Birchcrossing. Stepping up to 98 in these instances will not cause your car any harm, and while the higher knock. ”. I would never use fuel below 91 octane on my WRX. It won’t hurt your engine if you use a higher octane fuel. In this article we are going to explain why E85 can make more power than pump gas and what is all needed to run it. Octane 95 gasoline is more flammable and lighter than 91 gasoline. 91 and 95 can be 3 or 4 difference (meaning 91 may actually be 95, or may actually be 87. Without a booking, vehicles are loaded in order of arrival at the terminal on the next. Fill up with 91, then when it is half empty fill with the 85. Erm, please dont test this on. Really hard to find 93 or 94. We would like to show you a description here but the site won’t allow us. The fuel economy of your vehicle may also be affected. If you put diesel in a petrol car, “the car will usually run roughly and the exhaust will be smoky,” the NRMA explained. Standard petrol is given a 91 rating, while premium unleaded is both 95 and 98. Reply Like. The chemical will damage a wood finish. 0L Coyote is one of the most impressive American V8 engines ever produced. This is a. And i can really proof the car is a bit more fuel efficient on 98 octane. )The '94-'95 Mustangs had a unique bellhousing to accommodate a5/8-inch longer input shaft in their T5 transmissions. The Ford Focus ST owner’s manual lays out the advantage in black and white: 252 horsepower on 93 octane and 243 horsepower on 87 octane. Now it is better to dyno the car and see if it makes more power with that timing than 22*s or 21*'s but either way anybody should be able to run 23*'s of timing. A fuel with an 87-octane rating has 87% of the efficiency of the baseline mixture. **". Is it stock. IMHO, a high top 159,. The octane rating posted on the pump is a measure of the fuel’s resistance to. VIDEO: How to Check Tyre Pressure And Condition. It is an affordable option for a high-octane fuel. i and n must both be in years or both in months. Tyres have different load ratings but generally a tyre of the same size usually are the same. If the car is tuned to run 95/98 as well as 91 you’ll see better fuel economy out of the higher octanes offsetting the price. THE ORIGIN OF SPEED RATINGS. You're not gonna save much anyways by going through the lower grade. Octane is a measure of petrol’s resistance to igniting prematurely in the engine’s combustion chamber when the car is accelerating. * Race (91 - 93 octane) - The race tune will ensure the largest increase in vehicle performance. For example, putting regular unleaded 91 RON in a car designed for the higher-octane 95 RON. There’s a minimum concentration requirement for detergents, and about 50 percent of retailers only put in the minimum. Standard unleaded petrol is 91. Drivability will just be poor overall if you do it for an extended period of time. The difference between the 91 and 95 octanes is the 4% change in the octane levels. #20 · May 19, 2016. Running above 93 octane will. Regular fuel typically has an 87 octane rating, mid-grade fuel typically falls between 88-90, and premium fuel is typically rated at 91-94 octane. Pry out the top of the speaker grille, fold it downward, and remove it. You’re actually filling your car or truck with a different blend of gas, which. Our information shows this vehicle is designed to run on 91 octane fuel. The Jeep Cherokee recommends regular unleaded gasoline 87 octane rating for all its engines (2. Sure, there are some performance trade-offs, but if the article is to be believed, they are very minor. 91 – Recommended RON / “Control” 95 – Gets best $/km out of any fuel, noticably more perky than 91 98 – Marginally better economy than 95, costs more obviously, noticably more perky than 91 Octane rating is the measure of a fuel's ability to resist "knocking" or "pinging" during combustion, caused by the air/fuel mixture detonating prematurely in the engine. The difference between 91 vs 93 octane is simply that the higher number has a higher resistance to detonation. Still, if the car requires premium, that’s what you should buy to keep the engine in peak tune. If you’re driving a car that takes 91 unleaded and you fill up with a premium 95 or 98 fuel, don’t panic as this won’t lead to any engine damage. e85 if vf1 (flex fuel compliant) Reply More posts you may like. There's no problem filling your 91 car with 95 or 98. Car experts say there is no risk of damage to a standard car using premium fuel. I know the performance will be temporarly decreased (untill i put 91) again, but not overall. I get about 4 mpg less on average if I use gasohol. that increase its octane value. The TCC. To put a ’95 4L60E into a ’94 car: Hard. Probably best to stick to one brand of fuel first. To put a ’96 4L60E into a ’95 car: Easy. What size engine can I put in my 91 Chevy Caprice Classic?. In addition, most modern cars have a knock sensor, so if the engine is under load (low rpm, open throttle) and it begins knocking, the system should retard the ignition timing until the knocking stops. Simply put, high-octane gasoline can be compressed and heated to a greater degree without self-igniting. Connect 12 volts from the car battery directly to the pins 30 and 85. Premium petrol is a fuel with a higher octane number than regular petrol. a 350 both are 4x4s. And finally, take your car to a mechanic for a tune-up. Here is a complete fuel-type guide and what's best for each Subaru model, regular (87), mid-grade (89-90), premium (91. In the process, the more highly tuned engine is a little more efficient, meaning it can make a little more power on the same volume of fuel. Question type: Maintenance & Repair. 5. If the octane rating is less than 91, you could damage the engine and may void your vehicle warranty. So use the correct octane gas the next time you fill up. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid. Thank the Chevrolet gods for interchangeability. 21 June 2022. The car is designed to run on minimum 91 octane fuel, that's the lowest you should put in. Secondly, V-Power contains cleaning and protective elements that both prevent the build up of carbon deposits in the intake valves and fuel injectors while cleaning any deposits that already exist. Car is too new to make a difference in my opinion. However both Shell and BP produce fuel at 102 RON for cars with hi-performance engines, and the supermarket chain Tesco began in 2006 to sell super unleaded petrol. Or, if you mix it 50/50, then you’ll get 95. 1995 Mercedes SL500 stock with AMG wheels. 893 posts · Joined 2015. 91 or higher octane petrol (95 and 98)Many tire speed rating charts also list the “Z” rating as anything over 149 mph. e. But goes to show that using 91 RON fuel in a car designed for 95 can cause damage in the medium term. The reason for this is that many European vehicles require 95 RON or higher fuel – as that is considered their regular unleaded. You can't just dump 93 in and be on your merry way without switching tunes. 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. . However, it’s not acceptable to put in a lower octane fuel than the minimum recommended by the manufacturer. If you put 91 (or 93 in some states) it will ignite in the combustion chamber at a less-opportune time in the stroke. This is usually what you find sold at no-name. However, it is important to remember that the right fuel, in this case 91+ octane fuel, has some excellent benefits for. The BP fuel cards we used to fill company cars with were only supposed to be used with 91 or diesel, except for GT-R's where we had to use 98. The seller included the car’s original unmolested 5. The canned DiabloSport tune was OK but the programmer also lets disable MDS (a big factor for me) and adjust other parameters. Although it might sound that the higher the octane level, the better it is for your vehicle, which might provide you additional benefits like reducing tailpipe emissions, improving fuel economy. Ground the 86 pin from the ground on the car battery and you should hear a clicking sound from the relay. Second generation Altima’s got the same engine tweaked for more power, from 150 hp to 160 hp. If the octane rating is less than 91, you could damage the engine and may void your vehicle warranty. However, as it currently stands, we have a clear response until proven otherwise from Honda--the manual is correct and it states 87 octane or higher as recommended for both 2023 & 2024 CR-Vs. The difference of cost in a fill up of 87 or 91 is between $2-$6 in most vehicles. #6 · Jan 6, 2013. If the opposite happens and you fill your regular gas-car with diesel, the damage may not be as bad. Check your car’s manual, or. The higher the number, the higher the octane rating. So there’s a short answer and a long answer to the question asked in the title of this article. Some countries even go further by providing E10 or E85 ethanol-based fuels, which are derived from sugarcane and are cheaper than 91. 000 miles with regular. . The fact that you ask 91 93 or 94 tells me that you're asking about RON, because much of the u. "Use unleaded gasoline with an octane rating of 91 AKI (95 RON) or higher. With that knowledge in hand, we can now come back to those numbers — 87, 89, and 93. If the manufacturer judges that the best performance, economy and even reliability can be achieved by using 95. r/BritishColumbia is dedicated to all things related to the Canadian province of British Columbia, situated on the stunning West Coast. Mixing 91 and 95 Load rating on the same axle. The mileage is noticeable better than 91 as. Like. If you experience car trouble, pull as far left as possible and turn on your emergency flashers. A car designed for high octane can take in lower-rated gasolines—it just won't. Whether or not that is useful depends on your vehicle’s engine and its requirements for fuel. At a minimum, you should use premium 91-octane gasoline or higher. A: Again, the difference is in the speed rating. I don’t fill up with 91 even though my car can use it. cut it by 30% and you should be able to make it to another pump. 1987 - 1996 F150 - what years body will fit 96 frame - hey guys. WRT our engines, this is the case. Put simply, the only difference between these two fuels is their Research Octane Number, with the higher-octane 95 unleaded designed to be more fuel efficient and lead to a smoother engine operation. With the exception of performance vehicles, all other Subaru models are designed to run on 87 octane. Passenger tires can vary widely in weight limits, some as low as 1000. Putting 91 Octane Into Our F-150’s Tank, in Two Parts. . Now it is better to dyno the car and see if it makes more power with that timing than 22*s or 21*'s but either way anybody should be able to run 23*'s of timing. In any case, 95 vs 91 is bugger all when you don’t use much anyway. The picture you posted is about 87 octane, not the percent ethanol. Reply. This is an older thread, you may not receive a response, and could be reviving an old thread. T. Can you take a 91 gen2 engine and put into 95 gen 3 car? ofcourse you cant. Put the minimum required by your car. All Mercedes-Benz gasoline cars require Premium Unleaded Gas. What happens if you accidentally put 91 on a 95? This is particularly the case if your car is designed to run on premium unleaded 95 or 98 and you fill up with 91RON. What will happen if I put 91 octane in my 93 octane tuned dodge charger. However, it’s not acceptable to put in a lower octane fuel than the minimum recommended by the. Hence, all Mercedes engines require a premium 91 gas. but I'm up in WI now where all they have is 91. Transmission swaps. Springfield, MA. In both cases, the higher-octane fuel would be a plus. Someone advised me unless the fuel cover says 95 or E10, then 91 (no ethanol) is the minimum that can be used. A modern car has a digital engine-management system with a calibrated spark-advance profile for a certain amount of octane in the fuel. Then still beat the crap out of the car because it's still perfectly safe. User #332674 2008 posts. Most stations around here only get 1500 to 3000 gals of premium once a month, sometimes a month and a half. If you can live with how it drives, and you dont hear pinging under heavy load/full throttle, dont worry about it. The answer is yes and no if you need to put 91 octane petrol in your 95 octane vehicle.