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    2017 6.7 Cummins, Ram 2500, Valvoline 15W-40, 6400 miles

    Analysis done by Caterpillar SOS. Truck is new to me as of 5 months ago, I have not done an oil change on it. Dealer says they used Valvoline 15W-40 and MOPAR filters when they put it on their lot. (they didn't have any more detail than that) Purchased as a Certified Pre-Owned truck with a hair...
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    1967 John Deere 6-404, Rotella Triple 15W-40, ~20 hrs/3yrs OCI

    Analysis done by Caterpillar SOS. The '67 John Deere is a 644a Payloader. The UOA is bad... really bad. I'm not very surprised but there are a lot of things going on with that machine. Suffice to say I'll be resampling after this new sump full of oil gets a few hours on it to see where things...
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    How to sift through the BS Oils?

    What are the standards used or methods for identifying when an oil may not be what it claims to be? Case in point would be Triax. Amazon reviews are great, lots of seller self-glorification, no API cert but a nice long list of manufacturer's specs it meets, but not endorsed by. I saw another...
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    Sunoco HDEOs?

    I recently switched my 1960's Deere payloader over to Sunoco ATF in its Allison trans and loader hydraulic systems (yes it meets the specs AND it gives me much better cold weather performance) and now I'm looking closely at Sunoco Super C 15w-40 as a single oil for my 3 tractors, two Cummins...
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