I assume that you had cross-contamination beforehand? If so, did your mechanic flush out the cooling system? If not, there is very likely to be oil residue turning up in your bottle for quite some time to come.

__________________
-tp


1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS
1988 560SEL "Gunther"- 190K passes anything except a gas station
1997 S420 - 265k just bought it with a rebuilt trans. Lovely condition