thanks, how would draining oil out the top affect whether or not particles are removed with the oil? it seems like it sucks everything up like a straw in a cup.

to clarify, i meant i was sticking with 3,500 miles while i unknowingly have gasoline rated oil. when i thought it was diesel standard oil, i was going to wait until 4,500 as diseasel300 mentioned, but i have not actually waited that long yet.

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w123
1985 300D turbo sept 2015 - present
1985 300TD turbo oct 2023 - present
looking for biodiesel in nyc