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We just purchased a 2019 Silverado 3500HD DRW diesel, was towing our 2017 3791RD with a Silverado with the 6.0 gas engine, what a difference. For all you Chevy guys the dealership told me oil changes every 5,000 miles and filters every 15,000 miles also told me to top off the DEF every 2,000 miles does this sound about right.
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