Oil & trans temps in 6.7 PSD
What are others seeing in oil & transmission temps when towing ? Went out for 1st long trip w/ out '15 PSD and oil temp was running between 210-225 and trans 200 to 210. This was at hiway speed (70 o...
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Winged One wrote:buc1980 wrote:
I wander about the temp too.My 11 in the hills of Kansas at 103 temp outside the engine temp went to 245 and the tran to 205.Looks that is the right operational temp.Next time I will go with synthetic oil may be the temp will don't go that high.
IIRC doesn't the manual call for 5w40 synthetic if we are towing? Or am I crazy?
Yes for Towing or Severe Service the recommended oil is a 5W40, but I'm willing to bet that even a 10W30 diesel engine oil will provide the same protection. Having said that I run a 5W40 oil.
In addition the transmission oil is a synthetic oil that doesn't require service until 150k miles.
These engines are design to run hotter in order to create enough heat to burn off the soot particulates in the DPF (passive regen)creating less need for a active regen that burns more fuel.
