2021 Chevy Duramax L5P - 25,233 miles/579 hours on oil - 46,733 total miles/1074 total hours - HPL 5w-40

[wwillson]

This run of HPL 5w-40 HDEO has a total of 25,233 miles and 579 hours on the oil and has been in service since 8/10/2022 (22 months). This sample has about 3,000 miles since the last sample and has only about 1,000 of those miles pulling and 2,000 miles driving unloaded on the interstate. I sampled at 3k miles because my intent is to change the oil to HPL's 15w-40 cold climate, which has zero group III base oil. The base oils for the cold climate oil are PAO, alkylated naphthalene (AN), and Esters. I am curious to see how the cold climate oil will hold up compared to the standard HDEO. My other motivation to change the oil now is to install the PPE fuel cooler relocation kit and run a much larger and frankly better engine oil filter. I would rather not change the oil filter for the duration of the oil run and I believe the PPE filter will allow me to do just that.

This UOA shows nothing but boring results. There has been 4 quarts of make-up oil over 25,000 miles, but as we have learned when you pull with relatively high EGTs you can expect some oil consumption. 1 quart consumption every 6,250 miles isn't bad, I would rather the consumption was zero, but that's not realistic. The Fe wear rate is 5.2 ppm/1k miles, which is in line with the wear rate we see from the 6.6L Duramax according to @dnewton3 's data on the Duramax. With the soot at 0.8%, TBN at 12.54, oxidation at 7.3, and the viscosity at 15.2, this oil is in great shape and would have continued to run if I didn't want to change to the 15w-40.

Sample Information
Sample Date	6/23/2021	07/17/2021	8/24/2021	4/4/2022	7/1/2022	8/10/2022	1/18/2023	4/17/2023	8/16/2023	5/26/2024
Machine Age miles	2,500	2,700	8,900	16,000	21,500	21,550	31,300	37,000	43,400	46,733
Oil Age miles	2,500	200	6,400	13,500	19,000	50	9,750	15,450	21,900	25,233
Machine Time hours	55	62	214	350	495	496	734	882	997	1074
Oil Time hours	55	7	152	295	440	1	239	387	503	579
Filter Age miles	2,500	200	6,400	7,100	4,000	50	5,000	9,800	8,400	3,333
Oil Changed	Yes	No	No	No	Yes	No	No	No	No	Yes
Filter Changed	Yes	No	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes
Make-up oil	0	0	0	1.5 qts	2.5(+1)	0	1	2(+1)	3(+1)	4(+1)
Brand	Factory	HPL	HPL	HPL	HPL	HPL	HPL	HPL	HPL	HPL
Viscosity	15w-40	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4
Wear Metals
Iron	12	4	36	67	102	16	61	85	132	148
Chromium	<1	<1	2	3	4	<1	2	2	4	4
Nickel	<1	0	0	<1	0	<1	<1	<1	1	<1
Titanium	<1	<1	<1	<1	<1	0	<1	0	0	<1
Silver	3	<1	<1	<1	<1	<1	<1	<1	0	0
Aluminum	<1	0	15	13	14	3	8	9	13	14
Lead	6	1	2	4	3	1	2	0	2	4
Copper	109	28	85	188	203	29	185	197	158	128
Tin	6	1	0	6	6	2	2	2	2	3
Vanandium	<1	0	0	<1	<1	<1	<1	0	<1	<1
Additives
Boron	120	15	12	21	6	3	14	17	0	2
Barium	<1	0	0	0	0	0	4	0	4	0
Molybdenum	2	514	450	504	537	541	469	574	603	560
Manganese	<1	<1	<1	1	2	<1	2	2	2	2
Magnesium	672	995	968	1008	924	913	831	1001	936	930
Calcium	1260	2439	2414	2557	2459	2375	2111	2722	2606	2551
Phosphorus	1000	1099	1029	1064	981	973	847	968	916	929
Zinc	1155	1179	1148	1285	1233	1159	1078	1292	1256	1242
Contaminants
Silicon	87	33	48	46	54	18	21	27	27	28
Sodium	7	5	3	3	5	2	5	8	10	12
Potassium	11	2	43	55	59	6	16	21	30	28
Fuel %	<1	<1.0	<1.0	<1.0	<1.0	<1.0	<1.0	<1.0	<1.0	<1.0
Glycol	NEG	NEG	NEG	NEG	NEG	NEG	NEG	NEG	NEG	NEG
Soot%	0.1	0.1	0.4	0.6	0.8	0.2	0.6	0.7	0.8	0.8
Fluid Condition
TBN	8.55	14.9	13.3	13.7	10.8	13.9	13.76	12.86	13.38	12.54
Viscosity	13.9	14.5	13.8	14.97	14.5	14.4	14.5	14.5	15.2	15.2
Oxidation (normalized)						0(40.6)	2.5(43.1)	3.5(44.1)	7(47.6)	7.3(47.9)

 

[dnewton3]

Excellent results.
Could have served longer, obviously.

Any idea what the Si starting point is? (IIRC the anti-foam package escalates this value).

Are you still using the fuel additive that has some Fe in it?

 

[spasm3]

This run of HPL 5w-40 HDEO has a total of 25,233 miles and 579 hours on the oil and has been in service since 8/10/2022 (22 months). This sample has about 3,000 miles since the last sample and has only about 1,000 of those miles pulling and 2,000 miles driving unloaded on the interstate. I sampled at 3k miles because my intent is to change the oil to HPL's 15w-40 cold climate, which has zero group III base oil. The base oils for the cold climate oil are PAO, alkylated naphthalene (AN), and Esters. I am curious to see how the cold climate oil will hold up compared to the standard HDEO. My other motivation to change the oil now is to install the PPE fuel cooler relocation kit and run a much larger and frankly better engine oil filter. I would rather not change the oil filter for the duration of the oil run and I believe the PPE filter will allow me to do just that.

This UOA shows nothing but boring results. There has been 4 quarts of make-up oil over 25,000 miles, but as we have learned when you pull with relatively high EGTs you can expect some oil consumption. 1 quart consumption every 6,250 miles isn't bad, I would rather the consumption was zero, but that's not realistic. The Fe wear rate is 5.2 ppm/1k miles, which is in line with the wear rate we see from the 6.6L Duramax according to @dnewton3 's data on the Duramax. With the soot at 0.8%, TBN at 12.54, oxidation at 7.3, and the viscosity at 15.2, this oil is in great shape and would have continued to run if I didn't want to change to the 15w-40.

Sample Information
Sample Date	6/23/2021	07/17/2021	8/24/2021	4/4/2022	7/1/2022	8/10/2022	1/18/2023	4/17/2023	8/16/2023	5/26/2024
Machine Age miles	2,500	2,700	8,900	16,000	21,500	21,550	31,300	37,000	43,400	46,733
Oil Age miles	2,500	200	6,400	13,500	19,000	50	9,750	15,450	21,900	25,233
Machine Time hours	55	62	214	350	495	496	734	882	997	1074
Oil Time hours	55	7	152	295	440	1	239	387	503	579
Filter Age miles	2,500	200	6,400	7,100	4,000	50	5,000	9,800	8,400	3,333
Oil Changed	Yes	No	No	No	Yes	No	No	No	No	Yes
Filter Changed	Yes	No	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes
Make-up oil	0	0	0	1.5 qts	2.5(+1)	0	1	2(+1)	3(+1)	4(+1)
Brand	Factory	HPL	HPL	HPL	HPL	HPL	HPL	HPL	HPL	HPL
Viscosity	15w-40	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4	5w-40 CK-4
Wear Metals
Iron	12	4	36	67	102	16	61	85	132	148
Chromium	<1	<1	2	3	4	<1	2	2	4	4
Nickel	<1	0	0	<1	0	<1	<1	<1	1	<1
Titanium	<1	<1	<1	<1	<1	0	<1	0	0	<1
Silver	3	<1	<1	<1	<1	<1	<1	<1	0	0
Aluminum	<1	0	15	13	14	3	8	9	13	14
Lead	6	1	2	4	3	1	2	0	2	4
Copper	109	28	85	188	203	29	185	197	158	128
Tin	6	1	0	6	6	2	2	2	2	3
Vanandium	<1	0	0	<1	<1	<1	<1	0	<1	<1
Additives
Boron	120	15	12	21	6	3	14	17	0	2
Barium	<1	0	0	0	0	0	4	0	4	0
Molybdenum	2	514	450	504	537	541	469	574	603	560
Manganese	<1	<1	<1	1	2	<1	2	2	2	2
Magnesium	672	995	968	1008	924	913	831	1001	936	930
Calcium	1260	2439	2414	2557	2459	2375	2111	2722	2606	2551
Phosphorus	1000	1099	1029	1064	981	973	847	968	916	929
Zinc	1155	1179	1148	1285	1233	1159	1078	1292	1256	1242
Contaminants
Silicon	87	33	48	46	54	18	21	27	27	28
Sodium	7	5	3	3	5	2	5	8	10	12
Potassium	11	2	43	55	59	6	16	21	30	28
Fuel %	<1	<1.0	<1.0	<1.0	<1.0	<1.0	<1.0	<1.0	<1.0	<1.0
Glycol	NEG	NEG	NEG	NEG	NEG	NEG	NEG	NEG	NEG	NEG
Soot%	0.1	0.1	0.4	0.6	0.8	0.2	0.6	0.7	0.8	0.8
Fluid Condition
TBN	8.55	14.9	13.3	13.7	10.8	13.9	13.76	12.86	13.38	12.54
Viscosity	13.9	14.5	13.8	14.97	14.5	14.4	14.5	14.5	15.2	15.2
Oxidation (normalized)						0(40.6)	2.5(43.1)	3.5(44.1)	7(47.6)	7.3(47.9)

Nice! Makes me want to run it in my gas truck, this or the supercar.

 

[fantastic]

As you mention, there seems to be nothing out of the ordinary for your results on this latest sample. The only thing I see stopping this 25k ODI is right at the magical <150 Fe...Perfect timing! ha! Oxidation kept low during the run. Adding the 4 qts over the run probably helped a bit though. If this is a 12 qt sump then that's replenishing 1/3 of the oil. It'll be interesting to see how the 15w-40 PAO fairs & sounds like it has a good starting point but this oil used here seems to be excellent as well.

 

[Plum Bob]

Out of curiosity, I don't see the cold climate 15W-40 listed on their website, just the 5W.

 

[wwillson]

Out of curiosity, I don't see the cold climate 15W-40 listed on their website, just the 5W.

CK-4 Premium Cold Climate Heavy Duty Engine Oil | High Performance Lubricants

 

[wwillson]

Adding the 4 qts over the run probably helped a bit though. If this is a 12 qt sump then that's replenishing 1/3 of the oil.

This is correct. When you replace 4 quarts of a 10 quart sump, it skews the data. This oil could easily run to 30k and probably 35k if I didn't mind > 1% soot. I still haven't made up my mind on that one.

 

[Plum Bob]

CK-4 Premium Cold Climate Heavy Duty Engine Oil | High Performance Lubricants

Thanks. They don't have the 15W listed at the store website.

 

[wwillson]

Thanks. They don't have the 15W listed at the store website.

@High Performance Lubricants can you add the 15w-40 CC to the web store?

 

[53' Stude]

Thanks. They don't have the 15W listed at the store website.

ALWAYS call first and ask for Mary Jane or Angela.

 

[HPL Plant Manager]

@High Performance Lubricants can you add the 15w-40 CC to the web store?

@Plum Bob and @wwillson, I have added the 15W-40 CC to the web store.

HDEO 15W-40 Cold Climate

 

[travis8352]

@Plum Bob and @wwillson, I have added the 15W-40 CC to the web store.

HDEO 15W-40 Cold Climate

Is there a PDS for the cold climate 15w40 that we could see?

 

[HPL Plant Manager]

Is there a PDS for the cold climate 15w40 that we could see?

I don't have the PDS for this, but here is the data table for the 15W-40 Cold Climate. Once I complete the PDS I will upload that as well.