230-245 degrees when towing
Hey guys, first post. I love my 2500 6.4, it's my 3rd Hemi, but 1st HD. Great vehicle.
Sorry to dig up an old thread, but I am concerned about high oil temps as well. I searched for oil temps and this seems to be the right thread, so here goes...
I tow a 10,000lb 28' enclosed race trailer, and often see 230-245 degree engine oil temps.
On really hilly back roads getting to some tracks, the engine can run for extended periods at higher RPM - 3500-4000 RPM. The engine sometimes makes a strange mechanical sound at these speeds and temps (sorry, can't really write the sound, but maybe a rattly whine?) and I have pulled over the rig and idled while temps came down. Like something is possibly being overloaded...
I have seen temps rise to and stay at the 230-240 degree level even during interstate driving, on some long but sustained grades in PA for example. With airflow at 75mph (although 90degree summer airflow), the engine temps climb up there...
The cooling setup on this truck seems very well thought out with lots of plumbing and layers of coolers, multi chamber liquid/liquid cooling etc. I thought I could just add another air/oil cooler, but this thing is FULL of cooling already.
I wouldn't really worry about it except for the noise. I have not been to the dealer yet, but thought I'd put it out there on here first.
Anyone with similar experiences? Should I not worry about 230-245 on a regular basis with this truck?
Trans temps are about 195-200 when engine is at these peak temps.
Thanks for the help guys.