When I got my 98 E300, I was intrigued by the FSS and wondered how reliable/trustworthy it was. Most seemed to think it could be trusted and thus be relied upon for oil service intervals.

But I wanted to see for myself. So I changed the oil at 8200 actual miles....the FSS said I was on pace for 14,900 miles. My oil analysis is below.

FWIW the oil analysis tech said he'd be comfortable with a 15k drain interval based on my results. I may be a bit more conservative and drain at 10k, which would put soot at 1%.

Anyway, just wanted to share the results and see what comments anyone had on the data.

Attached Files

E300 OA.pdf (23.7 KB, 184 views)

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 159k miles
06 E320 CDI "Rutherford", Black on Tan, 178k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 75k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife