Imo if you don't have a supercharger or aftermarket heads and cam , you're wasting you're time with anything higher than what the manufacture recommends which is 87 unless you have a custom tune that requires any thing higher
i dont think their very high compression unless your running a pi swap on a 96-98, or h/c/i i think its like 9.5/1 stock i may be wrong, but 87 can be used, but imo i get a lil bit better gas milage out of 93.
It's all unleaded it just matters.. It's super or just unleaded.. Super has ethonal in it
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