Tranny and oil temp

[6litereater]

whats the max engine temp you see unloaded? and coolent temp?

[720Deere]

Originally Posted by fireman06

I have problems with my oil getting to hot as well. I was pulling about 8,000 lbs the other day and my oil was at 243 degrees. Even unloaded on trips on the freeway for a hour or so the oil still runs at about 230 degrees.

Sounds like you have a bad oil cooler. It is most likely plugged up and not fully functional. What was your coolant temp? I think the Ford recommended max is a 28* differential between oil and coolant temps. Mine typically stays within 6 to 10 degrees.

If you are under 100K miles I would make a trip to the dealer and hopefully they will replace the oil cooler under warranty.

[fireman06]

Engine coolant stays at 180 and now that I,ve switched over to Amsoil the oil seems to run at 200. It was staying at 180 around town but getting hotter on the freeway. Where is the oil cooler located? Is it the small cooler in the center behind the bumper valance or is that for the tranny?

[alabamafrog]

The small one is for power steering/brakes, the engine oil cooler is the large round tube on the side of the motor where the oil filter screws on.

As for tranny temps, I get worried at 200 and if it stays over 220 for more than a few minutes I'll pull over, or if it gets over 230 I'll stop immediately. After putting a Trucool 40K cooler on mine for $120 I have had no more temp problems. Also mine does not and did not go to the radiator. It had a cooler between the radiator and inner cooler which I upgraded to the Trucool 40k one like the v-10 has and I added a 40k Trucool cooler in series and mounted it to the back of the front bumper. Pulled a tractor yesterday and temps never even registered on my gauges.

[720Deere]

On further review I was thinking you had a 6.0 when I saw 2003 in the signature. I need to pay closer attention to which forum the thread is in. You could still possibly be under warranty but I guess it's doubtful.

There is still an oil cooler issue if you have that much temp differential between the coolant and the oil.

[raycub]

So Albamafrog, you have 3 trans coolers hooked together? How did you hook them up? How low are your temps in summertime?

[strokin_early_99]

Froggie has two coolers. He has an early99 and they did not come with a fluid to fluid cooler like other years. He runs from the factory trans cooler to a tru-cool trans cooler and back to the transmission.

I upgraded my radiator to one with a fluid to fluid cooler in it. My fluid goes from the cooler in the radiator to my tru-cool trans cooler and then back to the trans. With a load of 10k on my truck I am lucky to see 160* while towing unless I am stuck in traffic and then it will get up to 180*. It will also get as high at 180* while drag racing. Since my rebuild I have never seen over 190* which is awesome.

[alabamafrog]

Last summer on a 90* day towing a tractor up very hilly terrain in Arkansas at low speeds I was sending over 200* oil to the coolers but the tranny never got over about 160* on the whole 300 mile trip. Total weight truck and all was around 23,000 and I ran it hard.