Duramax
When you're cruising at 75 mph,,,,passing everyone,,, uphill,,, with camper in tow,,,, and you look down and notice the rpm's are at 1800,,,, you say to yourself "Self, buying a Duramax dually was a ...
Forum Discussion
Must be a pretty small and light weight trailer to cruise uphill at 75 mph at only 1800 rpm. The low-ish RPM implies you are in 6th gear.
