Quote:
Originally Posted by scottmcphee
I think people who care go with the Mercedes Benz recommended change intervals for their severity of driving, change the filter every time, and use a good brand diesel rated oil. And leave it at that.
Maybe try your 10000 plan and have your soot analyzed for the first few. If low, continue.
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That is unquestionably the safest approach. But, I'm assuming that those who are intrigued by the idea of extended drain intervals would not want to do so at the expense of their engine.
On my 92 with 225,000 miles, my oil analysis came back with just over 1.1% soot after 7750 miles. Some would gladly drive another 3000 miles; others would be nervous by that level of soot in their oil.
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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles
06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 142k mi, wastegate conversion, ALDA delete
19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife
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