Transmission temperature question
We just came back from a week of camping, driving from Colorado Springs to Ridgway State Park near Ouray and back. We drove Hwy 50 over Monarch Pass. This was our first time going over a truly high ...
Forum Discussion
I agree that the chart is certainly outdated, but heat is the enemy. Blanket statements seem to be a thing of the past with full synthetic fluids.
Electric cooling fans in my new Ford Powerstroke don't turn on until about 230. Normal operating temps on highway (not towing) are just under 200 for transmission and about the same for engine oil. Normal temps this high are new to me. Reports of 230 going over mountain passes are about average....at least for the Powerstroke. Further, even at those temps, the Ford 6 speed diesel engine transmissions HAVE NO DRAIN AND FILL REQUIREMENT UNTIL 150,000 miles, even under severe duty. Heat seems to be factored in.
Having said that, I was always amazed at how cool my 2011 Duramax Allison Transmission ran. Never saw 200 even over high mountain passes.
For the op, it is going to depend on the cooling scheme and fluids used by your manufacturer. Lots of different normals out there now.
Electric cooling fans in my new Ford Powerstroke don't turn on until about 230. Normal operating temps on highway (not towing) are just under 200 for transmission and about the same for engine oil. Normal temps this high are new to me. Reports of 230 going over mountain passes are about average....at least for the Powerstroke. Further, even at those temps, the Ford 6 speed diesel engine transmissions HAVE NO DRAIN AND FILL REQUIREMENT UNTIL 150,000 miles, even under severe duty. Heat seems to be factored in.
Having said that, I was always amazed at how cool my 2011 Duramax Allison Transmission ran. Never saw 200 even over high mountain passes.
For the op, it is going to depend on the cooling scheme and fluids used by your manufacturer. Lots of different normals out there now.
