Using used motor oil is an aweful idea for many reasons.

You guys know you dont need the coke bottle for diesl purge right? That opening is JUST big enough for 2 hoses .

If your gauge is sticky I highly suggest filling up on lots of b100 this summer .

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1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

had a similar experience last time I did a purge, set up the aux fuel system, then my buddy brett and I hoped in and went to tim hortons for coffee, ran out of purge at tim's, switched back to my tank, and headed for home, purged and cafinated!!!!

Brett and I laughed alot that day about our magyvering, I don't think I even took the wrenches out from under the hood the whole time!