I sent to Performance Analysis samples of engine and transmission oil from the new-to-us 1996 E300D (W210). Both were probably dino oils and I replaced them with Mobil-1 synthetics. The car and its original engine and tranny have 248,220 miles on them. I don't know the miles on the oils because I didn't get that information from the PO. It is likely that all the miles on this car were accumulated using petrodiesel; almost all of mine will be biodiesel -- B100 here in Santa Rosa -- and petrodiesel on the road, out of town (unless I get lucky).

Both samples look good. I noticed that the reports don't include any units (probably PPM) and that there are no references or ranges supplied for the various factors. The info sheets sent me by George Murphy give the results of ten years of the oil analysis program (1984-1994). My numbers look good compared with the "average" numbers for 173 NA diesels included in the ten years of data.

I'll send in another engine oil sample after 5000 miles (requesting TBN) and will not change the engine oil until the analysis suggests that it is time. That will give me time to figure out what all the numbers mean.

Jeremy

Attached Files

	Engine.pdf (49.3 KB, 160 views)
	Transmission.pdf (45.9 KB, 130 views)

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970