CarbonSteel
Well-Known Member
I will not get into a discussion that went off the rails as the other thread did, I will only say that ALL oils (including gear oils) have improved since 2007 as have testing methodologies and it would be short-sighted to assume otherwise.I don't think gear oils have changed much since that report. There are no API "upgrades" for gear oil. Also since Red Line had not disputed the data and had been for sale and bought by Phillips 66, I doubt the formulation has been improved much. If you read the report, there is more than a split hair difference in performance.
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