I would be more concerned with shortened engine life. Hate to be the nay-sayer here, but the mechanics I know who repair MB diesel engines (616, 617, 60x) for a living report ring damage after long term VO use, and I know of one shop that refuses to touch any injection pump that has been subjected to VO. They will not rebuild and won't accept it as a core, according to them the damage is too severe to be economically repaired. Careful reading of the Journey to Forever website will show that one of the major problems with VO is the iodine value and the acidity level. I would make VO into biodiesel and burn that in my car, but I won't use VO except in an emergency....

[Shields up Mr Sulu! I need full power NOW, Scotty!]

__________________
Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC