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Old 09-21-2017, 06:29 PM
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Noob question

Hey this is going to be a really dumb question but I just accidentally put 3 dollars worth of 87 grade gas in the tank of my 09 SS but then I realized my mistake and quickly put in 15 dollars worth of premium. Will my car be affected in any way by this?
Old 09-21-2017, 06:35 PM
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It might run a little rough but no big deal! Just burn it and put premium back in man
Old 09-21-2017, 06:37 PM
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No. You're fine.

For a stock tune, premium fuel is "recommended." For a GM stage tune, premium is "required." Even if you have a GMS1 tune or a custom tune your car would likely not notice. Worst case is it would pull timing from knock retard but that is highly unlikely.

Last edited by exninja; 09-22-2017 at 10:54 AM.
Old 09-21-2017, 08:02 PM
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Originally Posted by exninja
No. You're fine.

For a stock tune, premium fuel is "recommended." For a GM stage tune, premium is "required." Even if you have a GMS1 tune or a custom tune your car would likely not notice. Worst cause is it would pull timing from knock retard but that is highly unlikely.
Do you really think someone with a noob question knows what pulling timing from the knock retard means?
Old 09-21-2017, 08:04 PM
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Thanks a lot for the info. I didn't think $3 worth of 87 would really affect be but this is def good peace of mind
Old 09-22-2017, 10:54 AM
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Originally Posted by cobaltssdude420
Do you really think someone with a noob question knows what pulling timing from the knock retard means?
Maybe, maybe not. Doesn't really matter. I try not to assume what someone knows or doesn't. If they don't know and want to know, they can ask or google search for the answer.
Old 09-22-2017, 01:01 PM
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Good point 👍🏻




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