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250k mile Oil Analyses: Mobil Delvac 1 ESP 5W-40: CK4

3.1K views 41 replies 13 participants last post by  TooManyToys  
#1 · (Edited)
Thought that I would share my most recent oil analytical results. At approximately 250k miles on the truck, and a bit under 5k miles OCI.

The aluminum came back a few ppm high (6 ppm), but I have some doubts about its accuracy. This happened twice before (2007 and 2019) and both times the next sample dropped back down to where it should be for my truck at 3 ppm. I have analyses on all oil changes for this truck except for 2.
.
2006 6.0L​
Blackstone
Mobil Delvac 1 ESP
5W-40: CK4​
Oil change # : 48th​
Miles on Truck​
249855​
Miles on Oil​
4867​
Universal Avg.​
Contaminent / Property​
Value
3Aluminum6
1Chromium1
22Iron26
3Copper1
3Lead2
1Tin0
31Molybdenum34
0Nickel0
0Manganese0
0Silver0
0Titanium0
4Potassium5
33Boron85
11Silicon6
3Sodium4
3103Calcuim1128
83Magnesium948
1120Phosphorous941
1288Zinc1190
2Barium0
Vanadium
Antimony
65 to 76SUS vis at 210 F65.4
11.6-14.8cSt at 100 C11.73
>410Flashpoint425
<2Fuel<0.5
0Antifreeze0
<0.1Water0
<0.8Insolubles0.3
>1TBN7.5
TAN
Viscosity Index
Nitration
.
 
#35 ·
I have an EGR cooler from BulletProofDiesel. The EGR valve is probably not functional though, lol. Maybe 75k miles that way, can't recall for sure.
Copy that, excuse my ignorance in the quote "(probably) not functional) do you have it connected but not installed?
I going on 255k egr in tack, BPD egr cooler and updated MC oil cooler.
 
#37 ·
7.3 gasser has been out for a couple of years now, pretty decent engine, they also make a smaller version of the 7.3 in a 6.8 variant. 6.8 is a v8 not to he confused with the 6.8 v10
 
owns 2002 Ford F350 XLT
#39 ·
Pretty potent gas engine. If I ever get a newer model truck, the 7.3 Gasser would be a consideration.
 
#41 ·
7.3 so far has been pretty good. It's a relatively simple pushrod, port injection engine. It does have the cam phaser and variable displacement oil pump though.

They've had issues with lifters delaminating but it's hard to tell how widespread.

 
#42 ·
It seems to be happening with many different brands lately. I'll look at the video later, thanks.
 
owns 2003 Ford F-350 Lariet