Oh, my car runs irradic and dies randomly like that at a stop using regular gasoline. Perhaps try a tank of high octane once. I find the benefits definately worth the price... the engine runs much, much smoother and more effective with it.

 

Maybe thats it, I had about half a tank and after runnin it pretty hard for 30-38 miles i filled up with 93 octane, no problems after, drive it for a few days and see what happens, Thanks again really apprecaite the replies.

 

Trust me. The high octane gas will not improve the performance of a 9:1 compression engine. A waste of money.

 

unless u got ur timing advanced alot then it will help but most people dont need it!!

 

no more high octane then It kills my little wallet! I know i read a few threads back about 87 or so bein fine, what was the exact octane soaring? thanks.

 

depends on ur tune but a stock 65-73 small block 289-302 car sould be fine on 87 just listen for detonation using to high of an octane will kill power and reduce mpg

 

Do what you will. It was a suggestion to try a tank of it to see the effect on your motor. My motor runs incredibly smoother with it, I don't receive less MPG, and so forth. But this motor isn't quite stock.

 

i bumped my timing in my 91 5.0 ho vert im gonna go higher i get about 28 mpg now i cant run reg anymore gotta have at least 89 otherwise it pings im gonna go higher in search of even better gas mileage, increased power, smoother running car and reduced engine temps!

 

First time I heard high octane was a waste of money!!

 

jesus 93 octane is that available i run on 98 in the netherlands regular is 95