Did they change the oil filters again? Now, I'm reading about a "fleece" oil filter. I have been using the Mann filter (rated for extended changes with syn. oil) which kept the oil nice and clean over an approx. 8000 mi change interval. I was told that the original filter wasn't holding up for long periods, but the Mann filter (looks exactly like the MB filter) did the job. I believe that the cardboard ends on the original (Hengst?) weren't holding up for long periods drenched in syn. oil.

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Paul 1987 300 SDL; 2000 ML; '69 MGB; '68 VW Fastback