Oil temperature issues

[Cplunk]

My 2016 2500 6.4 Hemi oil temp is getting HOT hot all the way to 300 degrees. It has an engine oil cooler. I can find NO info online. Not even a how to on changing the oil cooler. Could the oil cooler be the issue?

 

[HEMIMANN]

Yikes! Way too high.....liquid cooled engines run oil temp just slightly north of the coolant temp. Clearly something is wrong.

So, first question: are your coolant temps normal (200-210F)?

 

[Burla]

There is no way, you would be throwing a code and most certainly the engine wouldn't survive long at that temp. The oil would be so thin basically the metal would have no protection, you would hear metal sounds and extreme loss of power. If by chance it was that hot, there is likely damage from the cool down. Any update?

I wonder if gauge is broke.

 

[Daw14]

Have you checked for codes ? Your sensor may be malfunctioning.

 

[Nick_rp]

If your coolant temps arnt rising with it than its a bad sensor/wire

 

[retired]

I have a 2020 6.4 and my oil temp always runs higher than coolant temps. Not 300* but still high. Coolant temps run high 220's. Tranny never goes over 170

 

[Burla]

I have a 2020 6.4 and my oil temp always runs higher than coolant temps. Not 300* but still high. Coolant temps run high 220's. Tranny never goes over 170

Coolant running at 220 you have an issue too, I'd get a 180 t stat. Engine oil will always run hotter under long trips or heavy loads because oil doesn't dissipate heat as easily as coolant or water, but it should only be 15-25 degrees max. You start running oil over 250f, you will start to see problems, especially cooling gas engines at those temps 250f-300f, the engine is in a higher state of death.

 

[retired]

Coolant running at 220 you have an issue too, I'd get a 180 t stat. Engine oil will always run hotter under long trips or heavy loads because oil doesn't dissipate heat as easily as coolant or water, but it should only be 15-25 degrees max. You start running oil over 250f, you will start to see problems, especially cooling gas engines at those temps 250f-300f, the engine is in a higher state of death.

My buddy's 2020 runs exactly the same. I think it is normal for new rigs. Be unlikely we would both get one with an issue.