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Hobo2's avatar
Hobo2
Explorer
May 29, 2018

oil temp hit 260 degrees , whats the best synethic oil

Towing my DRV up and past Vail ,CO. on I70 east my oil temp hit 260 degrees, transmission never went over 209 degrees. How hot can the oil get. Whats the best oil for heavy towing.2016 f350 dually
Travlingman's avatar
Travlingman
Explorer II
May 31, 2018
Gearitis wrote:
Motorcraft 10w30 Diesel Oil synthetic blend is not CK-4 spec. And according to Ford and their official statement, do NOT use CK-4 in Powerstrokes, new or old as CJ-4 give better lubrication.

Clicky


That has changed since CK4 first came out. Here is the latest list I could find of Ford approved oils including CK4. Ford Approved

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