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just run the highest you find around
It helps keep the thing cooler, and for the difference in cost the cooler running is a good thing. the 790 compression stock is about 9.2 old rule of thumb that would ask for 92 octane, mine is at 10.1 and it runs 92 or 93.5 nicely. it balks a little on 89. another thing to think about is that the premium pump gas is usually just a little older(not so good) but is delivered less often and seems to be cleaner, the sitting around lets the crap settle out ( and that is really good).
look for 100% gas if you can find it, the mtbe and alcohol is hard on the rubber in the fuel sys.
never buy gas if you see the truck filing the main tank, you should see what gets stirred up from the top And bottom of the tank. (not many places filter the gas before it hits your tank, Exon, Sunoco usually does though, this does not help with the water getting stirred in just after their tank gets filled though)
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"Peter, It seems like you have been missing a lot of work recently, well Bob I wouldn't say that I've been missing it"
ENOUGH, go out and ride!
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