Question about 2004 Jeep Grand Cherokee
Having a relatively low compression engine, you can run an 87 octane fuel in there. If ethanol is added in your area, up to 10% is fine. If you do have ethanol, don't bother adding dry gas because the ethanol is dry gas. (any alcohol is hygroscopic). Adding a higher octane fuel is a waste of $ because unless you are getting detonation, it does nothing for you.
Posted on Mar 15, 2011
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Posted on Jan 02, 2017
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