New to me this testing stuff but I thought since it was a new truck saved from the crusher with a mystery motor of unknown origin transplanted that I'd get the oil analyzed to see where we are at. This dell le 5-40 is 5000 mi old and contains a dose of archoil.
Anyone care to comment?

 

I didn't see a level for soot. I think they charge an additional $10 for that.

If you were going to try to extend the life of the oil, I would think you'd want to know the soot level so you could determine how long to run it.

Anyone who interested in diesel engine oil soot, can read a rather interesting article here: http://www.machinerylubrication.com/...oot-oil-engine

 

I don't understand why they don't care that the Vis is below spec.

 

I believe that the "insolubles" is soot

As to the viscosity, it is common for the HPO system to shear the viscosity in a 6.0L engine.

 

There was an 10$ upgrade test that I don't remember what it was.

 

TBN .

 

The 6.0 uses the oil as both a lubricant and hydraulic fluid. As a result, the oil viscosity commonly is sheared down to a 30 wt range. That's why I change mine at no more than 5000 miles and would not consider extending it.

As far as the report, it looks really good to me. I think you got a keeper.

 

Well an oil and filter change is 190$ on my truck so I hesitate to do it TO often, but then again in the big scheme of things it's probably cheap insurance. I was planning on a 5000mi interval but I'm glad I had this test done to even know that this interval is fine, and if I'm in a pinch I can stretch it a bit also.

Good to hear about the motor, I've put a lot of blood sweat and clams into this truck and I'm liking it more and more all the time.

 

Who are you paying that much to? North Texas dealer coupon is $90 for a diesel right now. Or do you have the huge pan setup?

 

Paying someone? Just Walmart and eBay for materials. I'd never let someone else change my oil. My oil system is over 5 gallons between the air-oil cooler and the remote filter setup. Plus the Baldwin bt8851mpg filters are 30-40$ eBay, and the airchoil adds about 40$ also. Maybe archoil is overkill I dunno. Maybe the synthetic is overkill. Maybe the whole truck is overkill. But if I get an analysis like this each change also, it will really be up around 220$ per oil change. So, I'm hosed.

 

Just as an fyi - I am using Mobil 1 TDT and Mobil Delvac 1 and going apprx. 7500 miles on my oil change. If the shearing bothers you, my viscosity with that oil after 7500 miles averages 65.5 SUS (11.8 cSt). I am not brave enough to go longer, but thought I would mention it since your oil change is so expensive.

 

is that a 5-40 grade?

 

Yes. I have 5 data points (my last 5 changes) at 7100 to 7500 miles.

 

are you mixing them?

 

I switch back and forth between the two to get data. Since there is a fair amount of oil held up in the stock 18 quart system, I am essentially mixing them when I switch back and forth. In the future, I am going to use up my inventory of the TDT oil.

I bought around 30 gallons of it for $12 a gallon a while back. Since I retired, I am only driving around 7500 miles a year, so it will take awhile.

Mobil frequently puts the Delvac 1 on sale for around $24 a gallon. I probably have 20 gallons of it. I am set for awhile.

Sometime back (when I was running Valvoline PBE, my iron numbers started going up. The iron levels stayed up with Rotella T6. The Mobil oils have brought it down a bunch. I have not ever tried the Delo oils.

I run an analysis on every oil change and I have a few in the middle of some of my oil change intervals. I only do it as a hobby, not for any financial benefit (obviously).

BTW - I am convinced that not all engines behave the same when it comes to UOA!

Edit -

I wanted to add that I am at 195k miles w/ original injectors and original turbo (although I think my turbo has begin to stick every once in awhile).