Why do I get better milage on 87 than on 93??
#1
Why do I get better milage on 87 than on 93??
I get 16 miles per gallon, on 87 and 13-15 miles per gallon, on 93? I thought the higher the octane the higher the milage. My driving route has been the same eveyday for over a month. College M-F, Work Sat and Sun. Haven't had time to just cruise around. Traffic is the same, the speeds are the same. Ever since I had my engine rebuilt I've run 93, but since I'm a broke college student again, I've been running 87 with 30 miles more per tank. Can someone educate me, thanks.
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Zack
LT1 Based Engine Tech
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04-19-2003 08:45 PM