[shockz]

93 is a waste in these cars, unless you're tuned or in a very high altitude.

I'll put in the owners manual recommended 87 until it gets into Summer (over 80F), when I'll switch to 89/91 depending on the price. I won't bother with cruddy gas brands either... Shell, Sunoco or Marathon are the only ones I'll bother with.

My MPG remains a constant 35MPG (mixed) and my acceleration/lag returns to acceptable levels in the hotter temps with a bit higher octane.