2015 Cummins service question.
So my dealer offers "free" oil changes as long as all the other work is done there, by the manual. So at 6 months, because I don't hit the mileage, I got my free oil change. Now I'm due for my 12 mon...
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Service is every 7500 miles or six months. So now I'm at the 1500 mile/12 month service with 9000 miles on the truck.
