All, Well, I've done it now. I brought home a new class A. Mine is on the FORD F53 chassis. The oil fill cap & owners manual state it is to use 5W20 motor oil ? WOW! That sure is thin....
dodge guy, I believe the V10 motor was changed in '03 or '04 with I think 3 valves per cylinder to up the HP to the currant 362 from 315 and torque up to 457#'s.