Delvac 1 SHC 5W40 Unimog 17.5kmi

Status
Not open for further replies.
Joined
Jun 8, 2009
Messages
1,464
Location
Alaska
All numbers not listed are zero or 1
Fe 36
Cu 3
Al 5

Si 3
Na 18 (same as VOA)

Mg 51
Ca 4634
P 1399
Zn 1487
Mo 2
B 294

Vi 13.6
Fuel Soot 0.7

Water
TAN 3.85
TBN 12.4

Makeup oil 6.5L in 29L sump
Analysis done by Detroit Diesel in Portland
I changed not because I thought it was used up but because it had been 2.5 years.
Clearly I can go for very long OCIs.

Charlie
 
Doug,

Not exactly soon but maybe after a generally eastwards trip through
Europe, Israel, Russia, Mongolia, China, SE Asia...
Shipping to and from Australia was more expensive than shipping to and from Europe by a factor of 10.

Charlie
 
Originally Posted By: m37charlie
Clearly I can go for very long OCIs.

Charlie



I cannot agree with you any more than that!
Very low wear.
Very low contamination.
Excellent TBN/TAN relationship.
etc,etc ...


Extended OCIs are very much a reality here. 2.5 years and this is the result? Excellent example of how the clock is NOT a tool to change oil.

Obviously, Charlie is very-well versed in his application and will not extend without UOA confirmation along the way, but I see LONG OCIs if this is indicative of the performance.

This being the result, I would think even longer use would be something to consider.
 
Last edited:
I think my plan will be to sample this new oil change at 20K and then every 7.5-10K thereafter. The limiting factors could be Fe (the limit on the engine is 200ppm) or viscosity, I doubt it will be TBN.

Charlie
 
Status
Not open for further replies.
Back
Top