Used Oil Analysis - 96 E300D M1 T&SUV 5w-40, 7960 mi

[JHZR2]

This is a UOA from my father's 1996 MB E300D. 3L I6 non-turbo diesel engine. Makes about 137hp. Used just about entirely for highway commuting.

He bought it last april or may with about 140k. We changed it over to M1 truck and SUV from whatever the PO's dealer (always dealer serviced) used (maybe M1 0w-40?) We ran it for a short OCI, and now are extending it out. Manuals suggest 7500 mi OCIs.

Looks good to me. I think next time we will do 10k. I think we could do 15k OCIs, but I think Fe may get too high. 10k might be a nice OCI for this engine.

Thought some may be interested in oil analyses.

JMH

*Sample Date	  2/27/2005  9/11/2004
*Unit Age	        157087m	149127m
*Time on Fluid	7960m	3867m
*Time on Filter	7960m	3867m
*Fluid Maint.	Changed	Changed
*Filter Maint.	Changed	Changed
*Fluid	M1 T&SUV 5w-40	M1 T&SUV 5w-40
*Iron (Fe)	27	13
*Chromium (Cr)	1.4	1
*Nickel (Ni)	0.7	0.1
*Titanium (Ti)	0.2	0.1
*Silver (Ag)	0	0
*Aluminum (Al)	3.5	2.6
*Lead (Pb)	1.1	0
*Copper (Cu)	0.9	0.6
*Tin (Sn)	1.2	0
*Silicon (Si)	6.3	5.8
*Sodium (Na)	1.1	1.5
*Potassium (K)	0	1.4
*Boron (B)	44	36
*Barium (Ba)	0	2.2
*Molybdenum (Mo)	2	2.4
*Magnesium (Mg)	426	347
*Calcium (Ca)	2264	2029
*Phosphorus (P)	1185	973
*Zinc (Zn)	1228	1073
*Sulfur (S)	3651	3417
*Cadmium (Cd)	0	0
*Manganese (Mn)	0.3	0.2
*Vanadium (V)	0	0
*Soot(%)	0.3	0.2
*Oxidation(PA)	80	70
*Nitratrion(PA)	40	25
*Sulfation(PA)	0	0
*ZDDP	         -0.06	0
*TBN	          10	10.2
*Kv@100°C	13.6	13.2
*White Metal	NONE	NONE
*Babbitt	             NONE	NONE
*Precipitate	NONE	NONE
*Silt	             NONE	NONE
*Debris	             NONE	NONE
*Dirt	             NONE	NONE
*Appearance	NORML	NORML
*Odor	             NORML	NORML
*H2O(Emul)	NEG	NEG
*H2O(Free)	NEG	NEG

[Dana B.]

That's encouraging. Don't know much about most factors, but the soot is almost zilch.

[michakaveli]

From running a few oil analysis on my '97 E300 on teh same oil I figure about 8-9K safely, with combined highway and city driving. I stick to 8K changes. I replace the filter at 4K and add a quart to top off...