New Diesel motor oil December 1st PC-11 now CK-4 and FA-4
This will be interesting. New PC-11 (API CK-4 and API FA-4 HD motor oil December 1st 2016 New Rotella HD oils
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I'm currently running a load of the new T4 10W30 Rotella. I have about 1k miles on it and is doing really good on fuel economy.
