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Old April 8th, 2008, 09:51 PM   #1 (permalink)
Redog
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Octane use in lead gas motor

I use a lead addtivie, but I noticed the guy (NJ gas station) put 91 in instead of 93 which I usually use.

Does it matter with such little octane difference?
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Old April 8th, 2008, 10:01 PM   #2 (permalink)
J-(Chicago)
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Depends on your compression.
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Old April 9th, 2008, 11:42 AM   #3 (permalink)
Redog
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9.2 : 1
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Old April 9th, 2008, 01:24 PM   #4 (permalink)
J-(Chicago)
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91 should be just fine.
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