My bad, didn't specify: I meant 93 octane. Figured most on this board buy premium. I have no knowledge at all of the benefits of 87.
If you have a link I'd love to read why they use 83 (saying this seriously, not sarcastically

)
You know you're a loser like me when you base your weekly schedule around the local Exxon's Terrific Thursday (or whatever it's called - 10 cents off premium).