regular or premium gas for v6 camaro?

[redcoats1976]

Originally Posted by ghosted

It's expensive too! $8.50/gallon for 100 octane!

wow...i remember back in the mid 70s.was given moms 1972 galaxie 500 with 351 4v in exchange for selling my 67 mustang.she had always run 89 octane in it,so i ran the tank down low and started using sunoco 260(100 octane) and advanced the distributor then retarded it until it barely stopped knocking.turned it from a knocker and pinger into a tire burner.she borrowed it one day to go to the store and i knew i would here about it when she turned out of the driveway,gave it a bunch of throttle and left 30 feet of rubber on the road.back on topic i use 89 octane,summers here are hot and humid so 87 is a non starter for me.tried a couple of tanks of 93 with no real difference.

[Ruger2506]

I know it's an old thread. But I wonder if anyone else ran premium only because they could get it in non-oxy. Up here I only drive the car 5 (maybe 6) months. I don't want that ethanol sitting in the tank for 6+ months.

That's what I did prior to my upgrades and tune. Now I'll have to figure out how to run E85 all summer and then get it all out and put in 91 non-oxy for winter storage.