I have a '02 Ford F250 with the 7.3 diesel. I put in the 6.0 trans cooler, my dipstick should show over full because it takes an extra quart of fluid. Is this correct ?
As said above, the dipstick tells you how much oil is in the sump when the engine is running. After its running and everything is full of oil it should be between add and full, no more and no less.