WebJul 16, 2013 · As far as I know, "premium gas" is anything 91+ (nevermind race fuel), so I should be fine. I haven't noticed any pinging or knocking with the 91 ethanol-free, but I have noticed slightly better gas mileage (21.5 compared to my usual 18-20). Anyone else here seek out ethanol-free fuel for their vehicles? WebFeb 14, 2016 · I guess a con of e85 is less gas mileage, but e85 is also cheaper than 91 so in the end I think it cancels each other out. of course, the main pro is that you get all that extra power and knock protection lol. __________________. My 2015 CWP BRZ Build.
91 octane with 10% ethanol vs. 91 octane pure gas
WebDec 21, 2024 · E85 is better than 91 octane for gasoline engines because it has more compression and produces a higher compression ratio. E85 also has less sulfur in it, which makes it a good choice for engines that require high fuel economy. However, E91 is better because it has more power and can be used in engines with higher compression ratios. WebJul 2, 2024 · So why is it our 1.5L Turbocharged engines do much better on premium than 87? And do even better on E40 or E85 when flex fuel kits are installed and the engine is properly tuned? The truth is, 91, 93 and even 100 octane gas does not contain more energy than 87. there is not more bang for the buck, so to speak. brentwood essex weather today
2024 Ram 1500 owners debate the best fuel octane for their trucks
WebMar 11, 2024 · The battle of E10 vs 91 fuels is largely over as E10 has mostly replaced the more expensive 91 unleaded. When it comes to choosing in the ethanol vs petrol debate it's important to read the owner’s manual of your car, or the sticker behind the fuel door, to see what the manufacturer recommends as a minimum grade of fuel safe to use in your car. WebMay 25, 2014 · From my understanding E85 is much higher octane than 91 but it's not as efficient. I had between 1/8-1/4 of tank of 91 when I added 10 gallons of E85 today to test it out. So after I run this tank down I will add more E85 and start calculating, if I can get better mileage with E85 than 91 then I will happily switch to get the higher octane. WebE85 has higher octane than regular gasoline. This means that E85 is a lot better for your car’s engine than regular gasoline. It is also a cleaner fuel with lesser harmful … brentwood estates birmingham