The Germans have been doing this for years! Try taking a oil filler cap off a german car while its running, one massive vacuum leak. And, yes, if done right will work wonders on your oil leaks. You just need to maintain the seals on the engine to maintain vacuum.. rob..
70 SJ GP 455 HO 67 verdoro green 400 4 spd firebird 66 2+2 hardtop 64 tempest wagon 65 black/black 4spd GTO
