Had my oil and filter changed, put in full Synthetic, getting ready for towing season. Will be taking off in a couple of weeks to a three-week trip. Had a little gremlin. When I picked up the truck there was about three quarts of oil left in the container I had provided. Took it home and tried to find oil on the dipstick to no avail. Finally poured the other three quarts in and could find it on the dipstick. Went back to the dealer and mentioned that someone didn't know they were dealing with a diesel pickup, in spite of the DURAMAX logo on the hood. Work order said gas and I guess the tech was too inexperienced to think for himself. Have to be a little careful about those things. Don't know if seven quarts would have been enough for our trip and would hate to be stuck with a blown engine far away from home.
2012 GMC 2500HD D/A Crewcab
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2008 Polaris Sportsman 700 X2