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  1. Maintenance & Fluids
    I have the 2016 Chevrolet Silverado 2500HD Duramax/Allison with over 100,000 miles. Would it be benefit to switch to synthetic. All previous oil and changes have been done at dealerships across the nation.
  2. Duramax Sixth Generation: 2017-2019 (L5P)
    We have bought a 2019 it has 20,000 miles on it and I am not sure what oil was ran in the truck before we bought it. Is 20,000 miles to many miles to start using Synthetic oil? I’ll probably never put over 8000 miles a year on the truck anyway so I might be wasting my money on synthetic oil...
1-2 of 2 Results