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					Originally Posted by Ciao  10/10th you can get 100 octane 1/4 mile south off kipling on Alameda Mobile gas station in Lakewood, Colorado.
 4 gallons of 100 octane and the rest in 91 will get you to 93 octane
 
 91 X 14 (Ga) = 1274
 100X4 (Ga) = 400     1274 X 400 = 93 Oct
 
 Try this formula. I believe it was posted by H2OSkier a month or so ago.
 1. (Octane of fuel #1) X (# of gallons of fuel #1) = X
 2. (Octane of fuel #2) X (# of gallons of fuel #2) = Y
 3. X + Y = Z
 4. Dividing Z by the total number of gallons of both fuels gives you your total octane number.
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Propane is 110 octane... hehe 
I'm gonna go back to lurking now. 
