Esso, PetroCanada, Shell and Sunoco?

[roast]

@noopdogg

yea, stock KA is only good for 87 octane, anything else is just a waste of money. If you have installed high compression pistons, or your boosted, or you have an ECU tuned for it, then you need higher octane 91-94 or your engine will detonate,knock w.e which is really bad…

If I bump the timing i usually run 91 on my KA.

I’m thinking of running 89 in hot weather with stop and go traffic.