Ford Engine size
I have a ford engine in my 2014 Newmar Bay Star. What size is it? No books came with it. Any way to determine if the oil in the engine is synthetic?
Forum Discussion
I've owned 3 vehicles with the 6.8L Ford V10, one of them a 2014 F53 chassis, and IIRC all of my owner's manuals recommended Motorcraft 5W-20 synthetic blend.
