Oil for Duramax Diesel - Page 2

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**Lynn** · #11 09-16-2021, 07:17 PM

Thanks for all the input.

**Copo_Cartel** · #12 09-16-2021, 10:44 PM

I use my GM dealer...due to the fact if you deviate from there oil change policy whatsoever you will void your vehicles GM warranty. On a better note I get free lifetime oil changes for my 2015 Duramax GMC from the dealer.

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