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Old 01-24-2020, 07:36 AM   #2279
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Member#: 492422
Join Date: Oct 2018

Originally Posted by bluesubie View Post
There is and it does.

This is the new RT6 that is the mixed fleet oil (gas/diesel). It has a higher HTHS than Resource Conserving/GF5 oil in order to meet the diesel spec, and HTHS is what keeps the bearings happy providing a thicker oil film.
So whats the real difference between the Rotella 5w-40 diesel and the 5w-30 multi vehicle oil? More phosphorus?
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