PDA

View Full Version : Fuel Question



Mckillop
05-10-2011, 11:13 AM
I am wondering if there is a need to run premium fuel in a stock 502mpi, or if I am just waisting my money by not using 87? I always have run premium in my boats, but is it worth it?

Tidbart
05-10-2011, 11:56 AM
I am wondering if there is a need to run premium fuel in a stock 502mpi, or if I am just waisting my money by not using 87? I always have run premium in my boats, but is it worth it?


Absolutely no reason to run high test. Engine was built to run on 87. Save the dough.

Mckillop
05-10-2011, 12:08 PM
Thanks, thats what I was betting on.

RedDog
05-10-2011, 12:10 PM
Absolutely no reason to run high test. Engine was built to run on 87. Save the dough.

ditto

Donzi Vol
05-10-2011, 12:19 PM
How about an older 351 Ford?

brwn234
05-10-2011, 12:22 PM
I used to do the same thing. Started using regular and didn't experience any performance difference. I will however fill up with premium before I store for the winter and top off with premium the first tank or so after winter in attempt to counter act the old fuel and lost octane.

pipnit
05-13-2011, 04:06 PM
Higher octane can and will often result in lousy performance if the compression isn't high enough and you can't get it to burn off all the way.