Quote:
Originally Posted by Sean
The car wants 93 but we only get 91 at the pumps, so when I do a track day or some hard canyon miles I have to mix in 4 gallons of 100 to get it up to 93. It's annoying. Some 76s out here have unleaded 100 at the pump, but they're not exactly common.
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The higher up you go (in altitude), 91 will start to perform like 93 anway.