mangahas

Octane 91
Our premium grade unleaded gasoline was formulated with a higher octane level and more cleaning agents to meet the demands of some of today’s most advanced engines



93 octane : Esso SUPREME+ contains more cleaning agents than our other Esso gasoline grades, which, in turn, have higher levels of detergency than the minimum government standards

mangahas

based on the descriptions i got from my location gas station is 93 octane worth it? i do always put 93 but but if theres no point il put 91. thnx

Frankie15

I'd just use 91 unless you have a tune requiring 93. I use 93 only because of that.

BadAV

91 is fine for a stock car, but if 93 is the same price I would use 93.

I recently moved after retiring and can only get 93 octane at 2 stations. I bumped my high octane timing tables slightly so I always run 93. I was able to get 93 many places, at the same price as 91, where I previously lived.

jrose7004

All we have around here is 91 octane so that's what I use.