Post your UOA, (used oil analysis) here

[Grumpy Bear]

@customboss could have some fun with that  

 

See that lack of a ragged top but two peaks (3,000 cm-1)? I have an idea but I'm not the FTIR master. 

 

[VicFirth]

If we go by what virgin oxidations show, Red Line followed by Amsoil SS have the highest values.  

 

There are so many esters its hard to know which ones they are using.  I've seen rumors suggesting Amsoil uses proprietary esters from Croda.  I have no way of proving so who knows.  

[VicFirth]

Skip to 10:50

 

"We do use base oils for sure in this group V area."

 

 

[customboss]

On 2/24/2025 at 8:14 AM, Grumpy Bear said:

@customboss could have some fun with that  

 

See that lack of a ragged top but two peaks (3,000 cm-1)? I have an idea but I'm not the FTIR master. 

 

ZDDP over BASE OIL 

 

 

 

[customboss]

Here’s some more FTIR instruction for folks that care. 

 

[customboss]

Lets join up here : 

 

[VicFirth]

A comparison of Mobil 1 0w-40 oils.  Notice the 0w40 SP FS has an oxidation value of 8.7.  The others are upper 30's.  

 

Also, note the before and after shear stability (Viscosity @ 100C).  The ESP X3, C40 GT are more shear stable than FS 0w40 and Supercar 0w40.  However, three of them have some type of group v while the FS 0w40 does not.

 

The Mobil 1 0w40's with ester look like great oils.  

 

Edited March 6, 2025 by VicFirth

[customboss]

9 minutes ago, VicFirth said:

A comparison of Mobil 1 0w-40 oils.  Notice the 0w40 SP FS has an oxidation value of 8.7.  The others are upper 30's.  

 

Also, note the before and after shear stability (Viscosity @ 100C).  The ESP X3, C40 GT are more shear stable than FS 0w40 and Supercar 0w40.  However, three of them have some type of group v while the FS 0w40 does not.

 

The Mobil 1 0w40's with ester look like great oils.  

 

Welcome! We’ve missed you. Thanks for sharing. 

[VicFirth]

Guy had 117k on 17 V6 Colorado.  Started consuming oil between oil changes after running Mobil 1 and Pennzoil Platinum all its life.  Switched to Valvoline Restore and Protect and it stopped.  I can't speak on the Mobil 1 Triple Action as that is a new formulation, but some of the Extended Performance oils from the prior version didn't have the solvency to keep piston rings as clean as I would have expected.  Valvoline Restore continues to impress. 

 

Had this guy used Red Line, Amsoil SS, HPL, the piston rings would have arguably better in better shape.  I'm speculating of course.  HPL is touted as having the most solvency of any synthetic.  No idea if true.  It's loaded with a lot of additives though.  

 

 

Edited March 10, 2025 by VicFirth

[Grumpy Bear]

*

Edited April 2, 2025 by Grumpy Bear

[VicFirth]

FWIW, HPL uses diester (adipate) and not POE.  

[customboss]

Industrial idea but what do you guys and gals think? 
 

https://www.plantservices.com/maintenance-mindset/article/55265799/maintenance-mindset-its-the-end-of-oil-analysis-as-we-know-it-and-i-feel-fine

[customboss]

On 3/18/2025 at 8:51 AM, VicFirth said:

FWIW, HPL uses diester (adipate) and not POE.  

Explains the cleaning effect.  NEO was majority diester not sure they are still in business. 

[Grumpy Bear]

Raven

7/21/2025 

2024 Mitsubishi Mirage 1.2 liter triple

26,073 miles on unit

3,573 OCI (3,750 nominal target) Pulled sample early due to long lead times.  

Lab Oil Analyzers (AMSOIL) Thank you Nick for all you do for me. 

 

Red Line HP Euro Series 5W40 + 2 oz of Red Line ZDDP additive. Boosted to SH levels. 1200 ppm minimum. 

Dropped water temperature 10 F with Stant Superstat this OCI.

Had an event this OCI. Punctured radiator and temp spike. Seems this brew did it's job.  

 

Iron and aluminum only wear metals to show up and continuing to decline. Both under 1 ppm/K miles. Total just over 1 ppm.

 

Nitration and oxidation nil. 2 abs units over VOA

Viscosity at 1.3% shear. 

TBN, plenty left, 74% of VOA. Hovering 5 mg KOH/gr

Oil color is awesome. Still light amber

This oil is not stressed but I will hold this OCI length until wear bottoms out.  Still in data mode. 

 

Silicon is the only concern and until I can find a better filter, tis what it is. Doesn't seem to be bothering the power cylinder.  

 

This next OCI is the last of the original batch number. 

 

(Green Dots)

 

 

[Grumpy Bear]

Raven

 

2024 Mitsubishi Mirage G4 Sedan

1200 cc I-3 MPFI and CVT

 

30,000 miles

3,772 mile OCI

 

Service oil Red Line HP Euro Spec 5W40

Filter FRAM XG

Fuel Shell V Power Nitro + 93 E-5

 

Best part of the sample was  @Black02Silverado. First pass on this sample broke trends and created doubt. Contacted Nick and told him the issues I had. He listened patiently then advised me on my options and how to exercise them.  I contacted the lab. Explained my concerns and how I track results. Customer service saw the issue plainly. We had a nice discussion and then the ICP was rerun with a more believable result. People make mistakes. People find fixes for mistakes. There are NO perfect people nor perfect labs. 

 

 

 

Seems we have bottomed out and leveled off. 

Next sample is scheduled for a 5,000 mile run.

 

 

Aluminum is the real winner in this grand experiment.

Mitigating skirt scuffing was the intent and seems to be the result.

Marked improvement over either 5W30 or 0W20.

 

 

Minimal improvement in Iron 5W40 V 5W30 but notable over 0W20

 

 

Total wear reduction is almost entirely the result of low Aluminum.

And yes, some minor contribution from bearing wear reduction.

 

 

Edited September 4, 2025 by Grumpy Bear