9. Here is a complete fuel-type guide and what's best for each Subaru model, regular (87), mid-grade (89-90), premium (91. I put a 91-octane tune on my car (91 octane is the highest octane fuel for pump gas in my region). If the opposite happens and you fill your regular gas-car with diesel, the damage may not be as bad. The ACCC said the average price difference between E10 and 91 was just 0. This is usually what you find sold at no-name. The three octane-grades of petrol that you can find in New Zealand are represented by the digits 91, 95, and 98. All that will probably happen is you simply suffer a loss of power, or function regularity. To put it in perspective, racing fuel uses 100 octane, and gas in Third World countries can dip below 85. If you only put 3 gallons of regular unleaded gasoline in, even though you still had 30 gallons of premium gasoline, this will likely not affect the car much. Remember you are pushing about 1/3 extra fuel to make E85 work. the a1 is found in dx and lx models and the a4 found in ex models. The same size 215/55/16 also comes in the XL version and this. Tire speed ratings range from A (the lowest) to Y (the highest). that increase its octane value. P. Fuel injection (usually*) uses an electric pump to squirt fuel into the engine. If you have a stock engine and do mostly city driving, 91 octanes will be just fine. 8672 posts · Joined 2010. . 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. And this is what most of our cars happily drink. Most of Canada just gets 91 max. An '62 Olds 394 ( 6,5 L) ; it was a second car and was going to the junk yard because of rust , so I commuted over 10. Unless, of course, the manufacturer specifically requires you to use a minimum octane rating, such as 95 or 98, as in the case of many performance cars, or for brands like Toyota or Volkswagen which can’t be arsed spending the money to de-tune some of their engines to accept our 91 RON cat urine. Welcome to the Motor Trade Association. But 94 RON E10 is widely available. 5. However, avoid using a lower octane fuel than the minimum recommended by the manufacturer. And this is what most of our cars happily drink. High-octane fuels have a greater resistance to pre-ignition because they burn slowly. I get about 4 mpg less on average if I use gasohol. 25 ounces octane booster can boost fifteen gallons of fuel. 1998-2001 (Second generation) Fuel Recommended: Nissan recommends unleaded fuel with at least 87 Octane. Still, if the car requires premium, that’s what you should buy to keep the engine in peak tune. 00 per gallon. However, I called the dealer and they said that 88 is the best for the Prius. At low rpm (e. In some countries like Australia, the standard unleaded petrol available is 91 RON however in the UK the standard unleaded is 95 RON, meaning. It is a close split for the remaining drivers between midgrade (87) and premium (91). Forum Fuel and economy Correct fuel type. Very few people need the 2500 but if you get a 159 wb you have no choice. This means if you blend 10 percent 100 octane race gas with 90 percent 91 pump gas, it will increase the octane of the 91 to 91. Combined with 91-octane fuel, this mixture can hold its own compared to 110-octane race gas. VIDEO: Child Restraints. The octane rating posted on the pump is a measure of the fuel’s resistance to. Can I use 98 instead 91? It can’t hurt your engine if you use a higher octane fuel. Reply Quote. 0L, 2. I couldn't feel the difference when I put 91. The WRX, WRX STI and BRZ also have decals inside the fuel lid spelling out fuel requirements. The internal combustion engine performs better with higher octane numbers. 87 is the standard octane rating that most car engines are designed for. The seller included the car’s original unmolested 5. S. Different types of petrol can be identified by a numbering system (91, 94, 95, 98, 105 etc), which is the octane rating of the fuel. #6 · Jan 6, 2013. you can put a higher RON fuel into your car, for. Table of Contents show. You could damage the engine using 91. It won’t hurt your engine if you use a higher octane fuel. Some cars that are compatible with 5 per cent ethanol are not necessarily also compatible with E10, so caution must be taken when referring to the car's fuel requirements. If you have a 1995 Chevy or GMC standard cab, replacing the rear speakers is pretty simple. 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. In fact, this is what many gas stations do in order to offer their mid-grade product. Why using 91+ Octane Fuel is Good for your BMW. 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. 89 + 93 = 91 makes perfect $$$ sense and clean burn but note the words Premium, Regular, Plus, Super, etc are going away. The difference between 91 vs 93 octane is simply that the higher number has a higher resistance to detonation. If you waved Harry Potter’s wand and swapped magically to 98, and keep everything the same, the same throttle position, same road, same everything - you’d look down and see the speedo on 105 or something. 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. All about taxes. New Zealand petrol uses the Research Octane Number (RON) to rate the octane value of the fuel while some overseas markets. The octane rating you see when you go to the pump refers to that fuel’s ability to resist igniting and the efficiency of that burn as compared to a baseline hydrocarbon fuel mixture. This will help to prevent any damage to your car’s engine. This is an older thread, you may not receive a response, and could be reviving an old thread. If you put lower octane gas in a high octane car, it will pre detonate due to being compressed to the level of high octane gas (depends on car but usually regular gas is up to 10:1 ish while high octane is 12:1 or more). EDIT: you can put 40% of a tank of RON 91 into RON98 before it drops below RON 95. If so, keep using 89-octane to regain some power and save your engine. 2. Rather than a straight linear curve, the benefit of ethanol. Life time millage is at 23. -lbs. You also can’t put a “use XX octane for YY:1 compression ratios” since there are many other factors involved and a static compression ratio doesn’t dictate a given cylinder. This can throw off the timing of the computer leading to other issues. Just add 91. #3 · Jan 9, 2011. You’re actually filling your car or truck with a different blend of gas, which. The answer is yes; you can put unleaded gas in your car. . 91W = Load Index 91 = 1356 lbs. 95 has a higher octane rating than 91. No problem with putting 95 or even 98 in a car designed for 91 – except generally you will be wasting money. 2019 CX-5 Signature. I've been running the Predator 93 octane canned tune in my car for over 3 years on good ol' California 91 octane fuel with no signs of detonation or other issues. Use of 91 AKI (95 RON) fuel will not affect your. Quote:. 1980 Mercedes 280TE AMG. You would end up running lean. 91, 95, 98, petrol, fuel, car, vehicle, service station, petrol station, diesel, which petrol to use, motorists. Contrary to. What happens if I put 91 instead of 95? If 91 is used in cars requiring higher octane fuel, you run the risk of pre-igniting or “knocking”. Follow. Asked by Adamboy2014 Oct 09, 2016 at 11:10 AM about the 1988 Chevrolet C/K 1500 Silverado RWD. I only ever put regular on mine one time by accident during a road trip because the buttons were flipped lol. For example, if you have a car that takes 91, then mixing with 95 is fine, but not the other way round. You can check the recommended fuel for your vehicle in your Owners manual. The Low-Down on High Octane Gasoline. WRT our engines, this is the case. 000 miles with regular. Spread the love. 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. Ground the 86 pin from the ground on the car battery and you should hear a clicking sound from the relay. For example, if you have a. Generally a vehicle can run on either 91 or 95 octane. We can thank Germany’s famous Autobahn for tire speed ratings. You may think that buying the higher-octane, or premium, gas is better for your car and will make it perform better. Most car engines are tuned to run at certain levels, and as a result, need a minimum octane rating to run efficiently, and dipping below that could result in ‘knocking’, or the fuel combusting too soon. There's not a single Corolla out there that requires premium unless it was done aftermarket and someone turbocharged it. For some cars (engines) 98 is much better on both counts. )The '94-'95 Mustangs had a unique bellhousing to accommodate a5/8-inch longer input shaft in their T5 transmissions. Second generation Altima’s got the same engine tweaked for more power, from 150 hp to 160 hp. The engine can only compensate so much with knock sensors and fuel trims. Most stations around here only get 1500 to 3000 gals of premium once a month, sometimes a month and a half. 86 octane would make me a lot happier though. Contrary to popular belief, pumping a higher fuel number into. Our traffic management center keeps a close eye on the Express Lanes and dispatches help within minutes. Carbon build up like it as dunked in mud. Hartford, CT. The load-rating is essentially the maximum weight the tyre can carry. Someone advised me unless the fuel cover says 95 or E10, then 91 (no ethanol) is the minimum that can be used. v4lu3s. (91*0. For plenty of petrol cars, this minimum rating is 91 RON, but increasingly, modern cars require a minimum of 95-octane fuel, particularly if they feature a turbocharged engine. If you put 95 in a 91 recommended car, then you will also end up with unburnt gas and stuff and pay more for nothing. 93 may also go away per recent EPA request. 5 octane. Most manufacturers calibrate their petrol engines to run optimally on 95 octane at the coast, although some gains are still possible. (He doesn't do the quotes by the way, there is a specialist team for this!). User #332674 2008 posts. Ultimately, if you can't swing 91 octane on the regular, you probably. However, it is important to remember that the right fuel, in this case 91+ octane fuel, has some excellent benefits for. A car that takes 95, can only mix with fuels that are higher like 98. Also it needs longer to combust fully, hence the advanced ignition timing for 95 usage. But it seems MG Australia has now confirmed that the car will be happy on 91-octane fuel, so that’s good news for you and your wallet. My 2010 model motorcycle is specced for 95+ but when riding around Australia I came across a few lone petrol stations a couple of hundred kms from the next one where 91 was the only option. The ethanol produces less BTU's then gasoline. e. You may want to consult with your DUI lawyer to see if there are things you can do to lessen the time you have to have the device in your car. E10 contains approximately 3% less energy than unleaded RON 91 petrol. **". “midgrade” is 89 octane and over 91. But the chart is not completely in alphabetical order. because the fuel doesn't degrade as easily when it sets for a long time and some of the engine's fuel systems deteriorate due to ethanol. With the exception of performance vehicles, all other Subaru models are designed to run on 87 octane. -- Life is a journey made more exciting with a. Question type: Maintenance & Repair. The higher octane gives. The engine will be too advanced, when that happens the engine can be damaged. [56] The reason for this is that in higher-elevation areas, a typical. The ethanol produces less BTU's then gasoline. If you have an older car that's designed for 87-octane gas and it knocks when you punch the pedal, try filling it with 89-octane fuel to see if the knock goes away. #20 · May 19, 2016. Better stick with what the manufacturer specified, or put 91 if you really want to. According to Fuel Express, you can put regular gas in your car or truck even if the manufacturer recommends premium. Millage could be a couple MGPs better but I have a roof rack and I'm sure that's affecting it a tiny bit. The ACCC said the average price difference between E10 and 91 was just 0. Transmission swaps. Which is 91 or higher. With flex-fuel, there are fewer toxic fumes being pumped into the environment. It won't hurt, just won't give you any benefits if the tune is set for 93. Joined: Mon Jan 21, 2013 7:26 pm. In parts Europe you can occasionally find 100 octane but not UK. 19 posts · Joined 2008. Car companies recommend fuels of a higher-octane rating (RON, or Research Octane Number) for cars that are designed to perform – to accelerate to 100km/h from a standing start in six seconds or less. A major element to that efficiency is using the right kind of fuel. Octane explained. Passenger tires can vary widely in weight limits, some as low as 1000. Finally, we have premium, and this can range from 91-94 octane. If the cause of your check engine light is octane related, the booster will fix the problem after about 20 miles of. SUPPLIED. If your car runs an Octane Rating of 91 (most petrol cars use this), then E10 fuel is interchangeable with your regular petrol. Simply put, it is vital you use the fuel recommended by your car manufacturer. StageLeft No Lifer. But goes to show that using 91 RON fuel in a car designed for 95 can cause damage in the medium term. So, for example, if you use 95 or 98 in an engine designed for 91, that’s OK. 2 cents a litre for the June quarter 2022, based on figures from across the five largest cities in Australia. The other way around is a problem. As far as I know, the engine will still run even if you unplug the electronic bits — assuming, of course, the carburetor was working before you unplugged it. If the owner’s manual indicates premium gas is recommended,. ok what are you smoking. One needs to check it with the car manual to see what petrol variant is suitable for it. Not drastically so but there's a difference, it's not zero. Load ranges for passenger tires are P, LT, and Commercial. 1 billion is wasted annually using premium gas in vehicles that don't require it. Put in 91 fuel instead of 95. Midgrade falls somewhere in the middle, often 89. All you have to do is add 1/4 of the bottle to reach a massive win of 91. What car is it. The mileage is noticeable better than 91 as. . S) Don't let Mercedes know, they would probably try to cancel the remaining 1800 miles of warranty!. Then I installed a HemiFever 91-octane custom tune and it made a big difference over the canned tune. The big block only gets the good stuff. The two digits before the speed rating symbol as show in the diagram as 91V are the load rating. The main difference with premium is its octane rating — 91 or higher compared with 87 for regular octane.