How long do f150 5.4 last like milage.
I'm at 220K on my 97 5.4. Still runs beautiful, gets about 15mpg city, 18mpg highway. Uses a quart of oil between changes, but it has done that since I switched to synth at about 30K. Everything except air filter (K&N), serpentine belt (Gatorback), sparkplugs (Motorcraft Platinums), one COP, Fluids, and alternator is factory original. I keep thinking that the water pump or the radiator hoses gotta be gettin ready to go, but every time I check them, they look almost new.



