2004 2500HD, 100K Duramax, 6k Valvoline PBE 5W40

[TXHunter]

Make/Model 2004 Silverado 2500HD
Equipment Isuzu 6.6L Duramax
Oil Type & Grade Valvoline PBE 5W-40
Mi/HR on Oil 6000
MI/HR on Unit 100824
Sample Date 08/16/11
Make up Oil Added 0

Aluminum 1
Chromium 0
Iron 6
Copper 2
Lead 1
Tin 0
Molybdenum 43
Nickel 0
Manganese 0
Silver 0
Titanium 0
Potassium 0
Boron 40
Silicon 7
Sodium 7
Calcium 849
Magnesium 1319
Phosphorus 1191
Zinc 1417
Barium 0

SUS Viscosity @ 210F 71.9
cST Viscosity @ 100C 13.44
Flashpoint in F 420
Fuel % Antifreeze % 0
Water % 0
Insolubles 0.2

 

[addyguy]

Very, very nice results.

 

[dnewton3]

Very nice indeed. And very typical of a Dmax (regardless of what oil is in it).

I presume you changed the oil, or is it still in there? That could have gone a lot further.

 

[TXHunter]

Sorry I should have mentioned that I did not change the oil yet. Plan to run it up to 8k and resample to see how it's trending.

 

[The motor guy]

Why do those engines wear so nicely? Compared to other diesels.

 

[dnewton3]

Originally Posted By: dhellman12
Sorry I should have mentioned that I did not change the oil yet. Plan to run it up to 8k and resample to see how it's trending.


Good to hear! THAT is the proper use of syns and UOAs. Test and use, test and use, test and use, ...

 

[dnewton3]

Originally Posted By: motor_oil_madman
Why do those engines wear so nicely? Compared to other diesels.


Good design of the mechanical and lube systems. Sometimes, the engineers just get it "right" from the get-go. Right balance of loads, bearing design, journal sizes, oil pressures and flow, filtration, etc, etc.

Doesn't seem to matter what you put in a Dmax; they just wear well. (presumption of HDEO lube within OEM specs).