90 degree air temp. F250, 220k miles, just flushed coolant system. New radiator. New oil cooler. EGR deleted. New thermostat.

Towing 75 mph. Towing about 6,000 lbs

Coolant temps 195 to 210 defending on I'm pulling a long grade. Oil temp 10 to 15 degrees more (delta).

Coolant temp not towing never gets above 191 with deltas of 7 degrees.

What is everyone else experiencing on the coolant temp while towing?

 

I would say your coolant temps were excellent but it's weird for your oil to be that much cooler than your coolant. Way weird. Almost a virtual impossibility.

 

Woops. It should read "more". Just changed it. Agreed. Eot is always hotter than coolant.

Thanks for the feedback. I didn't know if my coolant temp were high or not.

 

Your coolant temps look good . It's not uncommon to see 215-220 on hills and even more on a long hill (miles) at high boost levels. We don't have those long grades here in South Alabama so I'm just repeating that last part .

 

Rusty, what part of LA (lower Alabama)?

I'm in tuscaloosa county.

Roll Tide

 

Roll Tide!
Coffee County. (Near Dothan)

 

Ahhh. Peanut country. I'll be towing a camper past you tomorrow ... Well down I65 past you.
If I know how to PM you, I would. I'll try.