250000 miles, used for towing horse & utility trailers and general ranch/farm work. Above average time in 4WD and on dirt roads. No major mechanical problems & still 100% reliable and gets about 21 MPG on the hwy. Pulling a gooseneck horse trailer, 12-15 MPG average. I perform my own maintenance & have replaced all fluids with Amsoil products; including an aux. oil filter. The motor has no leaks. I have replaced all hoses once and flush & replace the antifreeze every two years. Oil changes at 50K with the Amsoil aux filter. I replaced the seat last month & have had it repainted as the paint flaked off at 100K miles. The gears, clutch, and transmission are fine.
I bought this truck when I was in high school and fell in love with it. Simple to work on. I've put 65 extra hp in her. It sits at 225 hp which is just right for what I do. I will buy another one of these tanks.
I bought this truck used from a rancher to pull a trailer I was pulling with my little Nissan. Long story short, this thing pulls. Rides really rough unloaded! 21 mpg is what I normally average, does not make any difference loaded vs. unloaded. Very roomy cab.