Recent content by Ramerica
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Synthetic Oil
HPL is on the list, but will take some time.- Ramerica
- Post #49,106
- Forum: Engine & Performance
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Synthetic Oil
That's over my head but my gut says 1800-1700 based on the strength of the Lubegard and Ravenol peak and the fact it was basically not there for PUP and M1. The small lumpy peaks might be getting into the limitations of sensitivity for the FTIR and could be background noise- Ramerica
- Post #49,081
- Forum: Engine & Performance
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Synthetic Oil
Yes it is. The attached wiki chart lists C=O bonds at absorption peaks between 1800-1500. Esters specifically mentioned at 1735. The Sigma Aldrich chart gets pretty deep https://en.wikipedia.org/wiki/Infrared_spectroscopy_correlation_table...- Ramerica
- Post #49,079
- Forum: Engine & Performance
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Synthetic Oil
Ravenol is there, it's the faint light blue line. Hard to see but just tops out above the Lubegard-PUP mixture- Ramerica
- Post #49,077
- Forum: Engine & Performance
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Synthetic Oil
I only have basic interpretation of the FTIR results based off what I Googled. What I can add is the big peak of Lubegard at 1750 gives us a baseline for "concentrated" ester additive. I added one bottle of that to 7 quarts of PUP 5w 20 and we can see the reduced size of the peak. Whether...- Ramerica
- Post #49,076
- Forum: Engine & Performance
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Synthetic Oil
Ok gotcha, API. Flaked on that one, I was thinking marketing designation like EP Extended Performance. I do have some SP 5w 30 High Mileage, but will be a week or so before access to the machine. Should be able to find some 0w 40 by then as well- Ramerica
- Post #49,073
- Forum: Engine & Performance
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Synthetic Oil
Unfortunately I do not. I have a oil burning Kia so I'll try to grab a quart of SP M1. What should I look for on the bottle?- Ramerica
- Post #49,071
- Forum: Engine & Performance
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Synthetic Oil
Not sure on the M1 formula, that scan was probably done around February of this year- Ramerica
- Post #49,069
- Forum: Engine & Performance
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Synthetic Oil
Second is magnified, got rid of the triple hydrocarbon peak as that was present in all samples. FTIR cant see elements but rather molecules and the bonds between them- Ramerica
- Post #49,067
- Forum: Engine & Performance
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Synthetic Oil
I have limited access to an FTIR and was able to compile some scans. Hope to do some more but the management gets their undies bunched up as we have to follow gubment alphabet agency regulations, at any rate.... I am not an expert on interpreting FTIR, just know enough to get in trouble...- Ramerica
- Post #49,065
- Forum: Engine & Performance
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Synthetic Oil
My father was gonna sell me his 1990 W350 Cummins about 10 years ago. It had hidden body rust and the frame needed help in a couple spots. She was a 10 footer all day though. I turned it down and he sold it to the right guy for 8K. I kick myself all the time for not buying it. The money...- Ramerica
- Post #47,989
- Forum: Engine & Performance
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Synthetic Oil
It's nice and quiet so I'll leave it alone for now. The Ravenol uses Tungsten, think there could be a surface battle with the moly in Lubegard? It won't do anything in the case of ester as it seems Ravenol has quite a bit- Ramerica
- Post #47,717
- Forum: Engine & Performance
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Synthetic Oil
Lubegard with the PUP, Ravenol by itself- Ramerica
- Post #47,715
- Forum: Engine & Performance
