I have a 2000 Freightliner FLD C12 with 1,060,000 miles. Runs good along with good fuel mileage (7.1mpg average) and uses 1 gallon every 5000 miles. Its no power house but it gets the job done at 60mph.
I have to disagree, I drove a '94 Volvo with..... Never mind, that truck had a Cat 3176, not a C-12.