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Old 06-14-2023, 09:04 PM   #10
arpad_m


 
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Drives: 2018 Camaro 2SS A8
Join Date: Jul 2017
Location: East Tennessee
Posts: 13,448
Quote:
Originally Posted by JTS View Post
I'm a little concerned with using an additive and having any issues, with fouling of any system , emissions, fuel , and having 2 plus yrs on B to B , and 4 plus on Power train , and being denied repair under the warranty. Thanks again NicKey
The service department will sure be able to see the orange MMT deposits on the spark plugs if you regularly use these octane boosters. As a result, they technically do have grounds to refuse a warranty repair, because you used an off-road only additive that is explicitly prohibited by GM, whether or not it actually causes damage.
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