About 3 years ago I posted a picture of my badly corroded oil pan on my C7 Cat. Well back then I removed as much rust as I could without taking the pan off and coated it with a epoxy product from an a...
The C7 engine is supposed to have a finned aluminum oil pan. Ours did. We discovered two years ago that when the Dealer wrecked it they replaced the pan with a bight orange steel Cat pan and probably explains oil vapor problems maybe no bafeling and designed for a water pump. Ask Freigthliner or Cat they will tell you this is correct. we have yet to find out who they had do it. It looks like our dime to correct it 3500.00