2021 Chevy Duramax L5P - 2,500 miles on oil/2,500 total vehicle miles - oil changed

[wwillson]

This is a UOA of the factory oil dump from my 2021 Duramax L5P with 2,500 miles and 55 engine hours on the clock. About 2,300 of the miles are cruising down the interstate unloaded.

Sample Information
Sample Date	23 Jun 2021
Machine Age miles	2,500
Oil Age miles	2,500
Machine Time hours	55
Oil Time hours	55
Filter Age miles	2,500
Oil Changed	Yes
Filter Changed	Yes
Brand	Factory
Viscosity	xx-40
Wear Metals
Iron	12
Chromium	TD]
Nickel	TD]
Titanium	TD]
Silver	3
Aluminum	TD]
Lead	6
Copper	109
Tin	6
Vanandium	TD]
Additives
Boron	120
Barium	TD]
Molybdenum	2
Manganese	TD]
Magnesium	672
Calcium	1260
Phosphorus	1000
Zinc	1155
Contaminants
Silicon	87
Sodium	7
Potassium	11
Fuel %	TD]
Glycol	NEG
Soot%	0.1
Fluid Condition
TBN	8.55
Viscosity	13.9

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High Performance Lubricants new formula 5w-40 was installed along with a Mobil 1 oil filter as discussed in this thread:

New formula High Performance Lubricants HDEO 5w-40 installed in my new Duramax

@High Performance Lubricants just finished formulating their new HDEO line and I got a stash to run in the new Duramax. Formulating and lab testing took a lot of time and work that paid off with an even better performing formula than their previous HDEO line. Yes, there is real lab data from...

bobistheoilguy.com

This is the cut ACDelco factory oil filter from the 2021 Duramax after collecting 2,500 miles of debris left in the engine. I don't believe the 2021 L5P had as much debris collected in the oil filter as the 2018, but it still had plenty. With a macro lens and the correct light, you could see a lot more metal. To the naked eye in the bright sun, the paper looks like someone through some glitter on it. There is a lot of metal.

Cut factory filter - 2018 Duramax.

[cut open] AC Delco PF2232 3500 miles 2018 Duramax - 1st OC

All, Below are pictures of the AC Delco PF2232 removed from my 2018 Chevy Duramax with 3,500 miles on the odometer. This was the first oil change. I also removed the filter media so that I could look for metal, I was surprised at how much is in the filter. Whoever over tightens the oil filter...

bobistheoilguy.com

 

[spasm3]

Lower metals than I would have expected. I assume the copper is from the cam bearings breaking in?

Not much idling , 45mph average.

 

[userfriendly]

Lower metals than I would have expected. I assume the copper is from the cam bearings breaking in?

Not much idling , 45mph average.

The copper is from the oil cooler. Hakoonamatata.

 

[wwillson]

Hakoonamatata.

I had no idea what this meant, then I remembered my kids watching, "The Lion King"

 

[4WD]

Lower metals than I would have expected. I assume the copper is from the cam bearings breaking in?

Not much idling , 45mph average.

Yeah … iron is good for new engine … think the FF is basic Delvac semi …

 

[64bawagon]

The Duramax engines have always been pretty easy on oil. The last change I did to my LLY had almost 12k miles on it with much of it pulling a 10K travel trailer, Blackstone claimed the Delvac syn 5W40 was still good for more even with the heat issues of the LLY.

 

[wwillson]

I updated the first post with pictures of the cut factory oil filter. There is a considerable amount of metal in the filter.

 

[nutdriver]

I have a 2021 GMC L5P as well. Just passed 2,800 miles. I changed my oil and filter at 1,050 miles for this very reason ie to get out the early wear particles. I anticipate the next change to be around 7,000 miles. I think your wear numbers from the initial UOA look good for a first oil change.

 

[loneryder]

I updated the first post with pictures of the cut factory oil filter. There is a considerable amount of metal in the filter.

That glitter is why I always changed the factory at around 1k miles. If you took the drained oil out in the sun, you would see it full of glitter that the filter did not get.

 

[wwillson]

If you took the drained oil out in the sun, you would see it full of glitter that the filter did not get.

I sure hope I wouldn't see any metal in the oil.

 

[SEBZX79]

We have a 2021 LP5 in a fleet with about 80k miles running hotshot. Truck has been fine except for check engine light that has been on and off since 7k miles. Using Cheapest I can find 15w40 with approximate 5 to 7k changes while under the 100k warrant. Looking to extend that to 10 to 15k changes on T6 5w40 after that. already had all the fluids serviced at 50k miles with out any issues.

 

[tnt_motorsports]

We have a 2021 LP5 in a fleet with about 80k miles running hotshot. Truck has been fine except for check engine light that has been on and off since 7k miles. Using Cheapest I can find 15w40 with approximate 5 to 7k changes while under the 100k warrant. Looking to extend that to 10 to 15k changes on T6 5w40 after that. already had all the fluids serviced at 50k miles with out any issues.

whats the OCI for a new D-max? I found 10k online but not sure if that’s right. It also said it has an OCI indicator so I’d follow that. The newest Rams I believe are 15k or 6 months. I think you might be short changing costing you money.

just my $0.02

 

[xgmad]

We have a 2021 LP5 in a fleet with about 80k miles running hotshot. Truck has been fine except for check engine light that has been on and off since 7k miles. Using Cheapest I can find 15w40 with approximate 5 to 7k changes while under the 100k warrant. Looking to extend that to 10 to 15k changes on T6 5w40 after that. already had all the fluids serviced at 50k miles with out any issues.

rotella t6 synthetic 15w40 should last 10k if im not mistaken.

 

[wwillson]

whats the OCI for a new D-max? I found 10k online but not sure if that’s right. It also said it has an OCI indicator so I’d follow that. The newest Rams I believe are 15k or 6 months. I think you might be short changing costing you money.

just my $0.02

Yes, if I were to change the engine oil at 2,500 miles every time, that would be throwing money away. I changed it early to remove the factory oil and oil filter because of the machining metal always found at the first change.

The manual only says to change the engine oil when the OLM says 0% life left, nothing about miles.

Since I'm running HPL HDEO engine oil, which is designed for extended drain intervals, I will sample and change the oil when the sample shows it should be changed. There is no sense in throwing away good oil.

 

[SEBZX79]

whats the OCI for a new D-max? I found 10k online but not sure if that’s right. It also said it has an OCI indicator so I’d follow that. The newest Rams I believe are 15k or 6 months. I think you might be short changing costing you money.

just my $0.02

The indicator goes off around 5k.
My rams run 15k on T6

 

[SEBZX79]

rotella t6 synthetic 15w40 should last 10k if im not mistaken.

The 2019 and up rams call for 5w40

 

[tnt_motorsports]

The indicator goes off around 5k.
My rams run 15k on T6

wow that’s a short OCI for a HDEO!

just my $0.02

 

[radiometer]

I find your report very interesting. I'm also amazed at all the metals you got rid of. Your motor has to be better off with all that stuff out. I kind of wish I had taken the element out of my filter when I changed at about 14,000 on my 2020 Chevy Equinox. You're using good stuff with that High Performance Lubrication, too.