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Re: What does GM mean by "Premium Gas Recommended" on the 2.4L I4?
Yep, engines adjust to the octane level. it wont do damage at all if you run a lower octane, like 89 instead of 91. 89 octane is cheaper than 87 and 91 anyway!
Last edited by 327 : 10-25-2005 at 06:59 PM.
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