Using Sea Foam to clean a VW TDI turbo diesel engine [SOLVED] Asked by Mike S. In Alabama Will Sea Foam work in a 2005 VW TDI 1.9L turbo diesel? Can it be used in fuel? Crankcase? Thank you.
Hi Mike. Sea Foam will work in your VW diesel’s fuel to help keep fuel passageways clean and lubricated. When added every oil interval, Sea Foam will work in your crankcase to liquefy heavier oil residues and deposits so they can drain away when you replace your oil. Otherwise, the sticky oil forms will stay an build in your crankcase.