Putting used engine oil in tank, Good Idea???? - page 3 - General - VWDiesel.net The IDI, TDI, and mTDI source.

• #30 by jimfoo on 09 Sep, 2008 13:39
• Used oil is free is the main benefit. It isn't really dirty if it's well filtered, plus I'm sure it adds lubricity to ULSD.