Octane use in lead gas motor

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Apr 8, 2008 | 08:51 PM

Redog

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Joined: Aug 2006

Posts: 3,145

From: Far Northeast Philadelphia, PA

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?

Apr 8, 2008 | 09:01 PM

J-(Chicago)

Seasoned beater pilot.

Joined: Jan 2007

Posts: 5,468

From: Chicago

Depends on your compression.

Apr 9, 2008 | 10:42 AM

Redog

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Registered User

Joined: Aug 2006

Posts: 3,145

From: Far Northeast Philadelphia, PA

9.2 : 1

Apr 9, 2008 | 12:24 PM

J-(Chicago)

Seasoned beater pilot.

Joined: Jan 2007

Posts: 5,468

From: Chicago

91 should be just fine.

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