what grade of gas do you guys give your pony

 

Premium whenever possible.

 

Use 87 unless you have altered the spark timing enough to need 89-93. All octane is is a resistance to spark knock. If you use 93 octane on a stock tune, you're wasting 20-30 cents a gallon.

 

Our cars were tuned to run on 87 from the factory if I'm not mistaken.

 

Yea i better check that out hu...probably best to use whatever the manual says for that reason. Do you think you would get any better production mpg wise from using a higher grade?

 

I use 89 octane in mine. Both have stock tunes and I noticed a increase in 2-3 mpg over an average of 20 tankfuls with the 89 over 87. I did not notice anymore gain running the 93 octane over the 89 though. Unknown of any power gain as neither car has been dynoed.

 

Cool thanks guys..I've been using 89 sometimes 93...the manual wants us to use 87

 

Using a higher octane rating when it's not necessary is just wasting money. I run premium, but then again, I have to.

 

I run 89 but if I don't I get negative milage I do a lot of highway and that's where it helps

 

Does that mean your odometer runs backwards?