Cleaning oil pan sludge without dropping it- before changing to detergent based oil

[tbirdtbird]

Tom, you would sandblast the inside of an oil pan? Do you go to church every day? I would treat the rust which doesn't look bad with phosphoric acid and not paint at all. Why risk paint flaking off in 20 yrs and clogging a pump?

[gweilbaker]

Originally Posted by tbirdtbird

Tom, you would sandblast the inside of an oil pan? Do you go to church every day? I would treat the rust which doesn't look bad with phosphoric acid and not paint at all. Why risk paint flaking off in 20 yrs and clogging a pump?

He may mean the outside.

[Tom Wesenberg]

Originally Posted by gweilbaker

He may mean the outside.

No, I do paint the inside just like many industrial and marine engines. Never had a problem doing this and it makes the oil drain better, and keeps the acids from coming in contact with the metal on the oil pan.