I found a gas station that sells octane 92 without ethanol for 4.30$ a gallon compared to other gas stations which have octane 92 with ethanol in it for 3.80 a gallon

Which is better for our cars performance?

 

straight gas! wow, where are you? wish they'd bring that here.

not by much i dont think, but it's a whole lot easier on all the components.

 

100% gasoline is going to be best, though I might only pay the premium if I were going on hard drives. For normal driving I'm not sure if it would be worth an extra 50c per gallon.

 

Yep...plain 100% gasoline is better...but getting hard to find.I'm not a chemist,but ethanol is a type of alcohol....a drying agent.Octane is a little higher and economy is less.....that's what I hear & read.

The 10% blend is common,but stay away from the E85.

You can thank the damn EPA for this mess.

\rlr
Carolina

 

Puyallup, WA just south of Seattle about 40 minutes.

 

Works out to an extra 6.50$ to completely fill the car from empty to full. Doesn't seem all that bad to me.

 

For what benefit though? An extra 2-4 horsepower at 8000rpms? If you're going to the track or autocross, sure. However If you're only doing long highway trips or errand running, it's wasted money.

Where I live, ethanol free gas is 50-70 cent per gallon more than standard premium. That's a steep price to pay most of the time.

 

100% gasoline is also better for winter storage, doesnt absorb moisture as fast.

 

I use straight E85. High octane, burns cooler, smells good. Especially wakes up boosted cars.

 

I may be wrong, but I'm pretty sure unless you've correctly modified your fuel system (injectors + pump) running straight E85 on a stock car can be dangerous.

But like I said, I may be wrong... We don't have a single E85 station where I live, and the closest ONE is an hour drive away, and it's the only one in that city.