This will help to prevent any damage to your car’s engine. And finally, take your car to a mechanic for a tune-up. All that will probably happen is you simply suffer a loss of power, or function regularity. Not drastically so but there's a difference, it's not zero. Remember you are pushing about 1/3 extra fuel to make E85 work. Stan. then fill up 91 and reflash again. IGNITION SYSTEM. However, it’s not acceptable to put in a lower octane fuel than the minimum recommended by the. Yes, you could do that. Can I Put 87 Octane Gas in My Car if it Requires 91? On modern vehicles, a computer, which is often referred to as the powertrain control module (PCM), monitors one or more knock sensors to detect spark knock. David Morley. This definition can slightly vary by state in the US. Technically, the 3-2 downshift solenoid should be swapped also, but experience shows that it is not required. (He doesn't do the quotes by the way, there is a specialist team for this!). 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. Then still beat the crap out of the car because it's still perfectly safe. The computer and harness from the 98 up TPI engine should be used and the radiator should be upgraded also. It won’t hurt your engine if you use a higher octane fuel. That means the parts will grate against each other and cause big damage. While premium gas drives performance in certain engines, the idea that it's more fuel efficient is a myth. This car should be able to retard the timing but valve damage could still be a possibility. #7. If you open the fuel flap of your car and it says “unleaded petrol only” it means 91 octane fuel is okay to use. Second generation Altima’s got the same engine tweaked for more power, from 150 hp to 160 hp. Most cars built after 2000 are compatible with E10. #9 · Nov 23, 2008. Aug 31, 2015. Like. Higher octane levels prevented. The OE tire for the Chevy Volt is the Michelin Energy Saver A/S passenger tire. Put what is on your owner's manual. However, avoid using a lower octane fuel than the minimum recommended by the manufacturer. #11. When I pulled the F-150 into a suburban gas station with the tank near empty, the options were 87 octane at $4. Premium is 91 or 93. r. Better for Environment. Midgrade falls somewhere in the middle, often 89. Many European vehicles, turbocharged, or performance vehicles require a minimum octane rating of 95 or 98 and should not be refuled with E10, 91 or 94 fuel grades. Posts: 203. Suspension, Wheels & Brakes. 87 octane is usually about 8 cents a gallon higher. Maybe if a 95 or 98 no ethanol fuel was made available in Canada, that may boost. Quote "It can’t hurt your engine if you use a higher octane fuel. In some countries. The long answer, of course, is the same as my answer for most motorcycle. 1990 Mercedes 560SEL with AMG parts modifications. Standard unleaded petrol is 91. Pry out the top of the speaker grille, fold it downward, and remove it. Yes, despite what you would think the Civic Si does NOT require premium. That’s 7-17 more octane points than 93, 9-19 more points than 91. If 93 AKI (98 RON) fuel is not readily available in your area, unleaded gasoline with an octane rating of 91 AKI (95 RON) may be used with no detriment to engine durability or drivability. There are no benefits to using premium gas unless your vehicles manufacturer requires that you use high octane (premium) gas. Generally, your choices boil down to 91, 95, 98 and e10. THE ORIGIN OF SPEED RATINGS. The higher octane gives. Regular or Premium – MB Medic. Cost Savings Through Better Chemistry. but I decided to stick with 87+ for the new RAV4. Dark Iron Blue 2018 Volkswagen GTI DSG with DAP Falken Azenis FK510. 265 = cross section width of tire in. 399, 89 octane at $4. Fill up with 91, then when it is half empty fill with the 85. From local news and events to. Of course very high octane car fuels often have alcohols or octane boosters added which change the composition. Question type: Maintenance & Repair. Hooker Blackheart. As a result, putting a fuel that has a lower octane rating to what your engine is used to may cause it to knock, which can damage the. Our information shows this vehicle is designed to run on 91 octane fuel. For example, if you have a car that takes 91, then mixing with 95 is fine, but not the other way round. )The '94-'95 Mustangs had a unique bellhousing to accommodate a5/8-inch longer input shaft in their T5 transmissions. You can check the recommended fuel for your vehicle in your Owners manual. Two full tanks of 91 caused no pinging and didn't seem to hurt it a bit. If the 87 octane is 10% ethanol you'll spend close to the same amount using 91 octane and have a more responsive car. #9 · Nov 23, 2008. It can also withstand higher pressure without igniting by itself, which is why high-performance engines need to run on higher octane fuel. Next, remove the four 9/32" screws securing the speaker, pull it out, disconnect the harness, install your new speakers, and button it all up. The greater the value, the greater the compression. For example, if you use 95 or 98 in an engine designed for 91, that’s fine. In the u. 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. “Just. 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. You may just not a difference a little less cash in your wallet. Running above 93 octane will. Many years ago, premium gas claimed to be efficient in terms of cleaning the fuel injectors. -- Life is a journey made more exciting with a. I always use 91 Octane Unleaded fuel in mine. Your 91/95/98 in NZ is basically. (In laymen’s terms, if you coat a piece of cloth in Regular 87 and another in Premium 91, theoretically the Premium 91. so I continue to put only Top Tier fuel in my car. S. However, avoid using a lower octane fuel than the minimum recommended by the manufacturer. 21 posts · Joined 2016. Using 91 in an engine designed for 95 or 98 is potentially destructive. Most drivers believe that 98 petrol is more expensive than 95 petrol because it's higher quality and better for your car. Still, if the car requires premium, that’s what you should buy to keep the engine in peak tune. By AA Expert1049 Posts|31 December 2012 at 9:45am. Worth doing a few test tanks. We can thank Germany’s famous Autobahn for tire speed ratings. 2) You are pushing extra timing to reap the benefits of E85 so it would be very dangerous to run just 93 on a E85 tune. For example, if you use 95 or 98 in an engine designed for 91, that’s fine. Reply Like. The ethanol-blended e10 (a mixture of up to 10% ethanol in petrol) is a fuel that can be used as a substitute for 91 in most cars. “midgrade” is 89 octane and over 91. If your in Northern California there is a gas station at the base of the Sunol Grade off 680 that carries 93, 95, 105, 110 I believe. OP, The current price of unleaded in Sydney is 120. It is okay to mix fuels (except for diesel) in your car as long as the octane rating is not less than the recommended fuel you should use. By Jeff Smith March 07, 2017. One needs to check it with the car manual to see what petrol variant is suitable for it. Octane as low as 85 AKI can be used in a pinch. To understand what octane means, we first have to look at the concept of. Engine Power has used Race Gas fuel concentrate in their builds for years because it works! Race Gas is a fuel concentrate that can be added to pump gas to raise the octane a full 4 points per 2 ounces of mix. Carsguide is not liable for the. All the cars can run on 95 types of petrol but not all of them can run on 91 in Saudi Arabia. Top. The reasons are: 1) the car would run insanely rich. The Jeep Cherokee recommends regular unleaded gasoline 87 octane rating for all its engines (2. The main difference with premium is its octane rating — 91 or higher compared with 87 for regular octane. Drivability will just be poor overall if you do it for an extended period of time. Regular gas typically has 87 octanes, while premium gas is usually 91 or higher. Most of Canada just gets 91 max. Can I use 98 instead 91? It can’t hurt your engine if you use a higher octane fuel. E85 has a typical octane rating of around 100-110. This is why most day-to-day cars can be filled with regular unleaded, while performance vehicles warrant Premium. EDIT: you can put 40% of a tank of RON 91 into RON98 before it drops below RON 95. These parts will allow your new system to function without the factory PCM in place. Standard unleaded petrol is 91. IMO, you should just pump 93. Buy one less beer at the bar when you go out on the weekend to show off your fancy new ride. I put 5 gals 87 octane + 10 gals 93 octane for a mix of 91 octane. That said, I'd never put 87 in my car and I'm in the same. What size engine can I put in my 91 Chevy Caprice Classic?. If the octane rating is less than 91, you could damage the engine and may void your vehicle warranty. Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice. 0L Coyote is one of the most impressive American V8 engines ever produced. Nov 19, 2002 #20 Originally posted by: notfred Your car takes premium gas, put premium gas in it. September 17, 2023 06:12. 5. To find the monthly payment we solve the present value equation for PMT: PMT = PVi(1+i)n (1+i)n−1 P M T = P V i ( 1 + i) n ( 1 + i) n − 1. It won't hurt, just won't give you any benefits if the tune is set for 93. I have a panic attack every time my girlfriend drives my car. Ultimately, if you can't swing 91 octane on the regular, you probably. " They mean "87 to 90. A 91H tire is rated for speeds up to 130 mph (or 210 km/h), while a 91W tire has a higher speed rating, allowing for speeds up to 168 mph (or 270 km/h). It says 91 cause that's what premium is in california. You're just wasting money if you think you're getting more performance or gas mileage out. Never a ping or negative effect and better gas mileage, so for the last 30,000 miles my car has not seen 91 again. Right, if you can afford a $30K+ sports car, you surely have the financial stability to not concern yourself with a couple bucks more in fuel costs. Premium unleaded is both 95 and 98. 2 cents a litre for the June quarter 2022, based on figures from across the five largest cities in Australia. 8672 posts · Joined 2010. 88% ethanol. Premium is 91 or 93. Unless you hear your car’s, engine knocking, there is no need to put a higher-octane gas in your tank. with a 350 can I put it in my 1988 1500 with. 89 + 93 = 91 makes perfect $$$ sense and clean burn but note the words Premium, Regular, Plus, Super, etc are going away. A car that takes 95, can only mix with fuels that are higher like 98. This is an older thread, you may not receive a response, and could be reviving an old thread. Fuel prices are always fluctuating and are steadily on the rise. And fifteen ounces bottle of octane booster treats 25 gallons of fuel. A car that takes 95, can only mix with fuels that are higher like 98. Minimum fuel grade. 95: A more premium fuel than 91, 95 is another common fuel type. Honda engines are designed for good performance and efficient operation using gasoline containing from 0 to 10% ethanol. A: If it’s recommended your car uses standard 91 unleaded petrol, it’s totally fine to upgrade to a premium 95 or 98 fuel - in fact, it’s going to be better for your vehicle, akin to treating it to a deluxe spa treatment. Higher octane fuel can allow the use of higher compression ratios. In terms of performance, you want the slower-burning fuel because the faster-burning kind can cause pre-ignition, and that can burn up your pistons in the long run. Use 91 or better. To put it in perspective, racing fuel uses 100 octane, and gas in Third World countries can dip below 85. that is 95. The fuel does get an octane boost from the Fuel Grade Ethanol and Mobil’s E10 is 94 RON; Mobil Additised Fuel. Introduced in 2011 with 412 horsepower, the “new” 5. The ecu will adjust the timing. Put in 91 fuel instead of 95. The car will adjust if you fill with 87, so no, you won't ruin your car if you do fill it with 87. It’s important to look at both together because the speed rating depends on driving with the right load. I have been reading conflicting reasons for and against going from 95 (690kg/corner) to 91 (615kg/corner) Does this just mean that a fully loaded car can only be 300 kgs less than stock or are there more profound implications of using a tire with a lower load rating ? Focus RS. If I were you, I'd use 89 minimum; it's probably better to trust the stickers on your car (gas cap for fuel, inside the door for tire pressure, etc. If you notice any difference in. Runs great on this. “You’re still getting that fuel in there, you just don’t have so much pressure,” Kofford said. Ease it to a reasonably low percentage, like 30 or 50%, even if you're in a hurry. Yes for seats there isn't an SRS connection but a seat belt warning lamp in the cluster. Most stations around here only get 1500 to 3000 gals of premium once a month, sometimes a month and a half. 2 / 10. 2L engines. Generally a vehicle can run on either 91 or 95 octane. For your convenience, below are the published OEM front and rear tire sizes and speed ratings for every Corvette produced between 1984 and 2013. You can put two or more bottles of octane booster in your vehicle . After siphoning out as much premium fuel as possible, fill your gas tank with regular gasoline.