Runs on the warmer side

[Shelby392R]

After my first long-ish highway trip this past weekend I noticed the raptor likes to run warmer than engine oils like. Yeah it's not devestating but as everyone knows heat kills oil and oil getting hot vaporizes and sticks to things, unfortunatly things like intake valves. Yes I have the FP catch cans to help. Kind of just doing random searches on different things to undertake on my 22 Bronco Raptor (larger radiator, whipple intercooler), was really looking for an after market oil cooler but doesnt seem like that is an option at this point. I may cad something up for the engine oil cooler since nothing exists, print it, test fit then see about getting them made up at a local CNC since nothing exists. A plate for the head to divert oil from head where cooler mounts then convert hoses to a traditional fanned cooler, and then a simple coupling for the water hoses since they will no longer be needed.
At highway speeds engine oil running 210-218 is a bit high to me. Took a trip to Hiddenfalls adventure park running about 70-75 mph. Since the oil has an oil-to-water exchange style cooler I know going with a larger radiator and intercooler should help but just curious if anyone has installed both or either of these and what it lowered oil temps to?
Looking at the CFS radiator and the Whipple mega cooler in the near future.

 

[Apache 8]

What temperature should the Raptor be at at normal highway speed according to Ford? It seems like if the temp is higher than spec at whatever speed, an owner should be able to have the causal factor addressed under warranty by Ford as opposed to having to replace significant parts such as the radiator or intercooler out of pocket. After all, this vehicle is purpose-built to run at high speed in some of the hottest places on earth such as Death Valley.

 

[Shelby392R]

What temperature should the Raptor be at at normal highway speed according to Ford? It seems like if the temp is higher than spec at whatever speed, an owner should be able to have the causal factor addressed under warranty by Ford as opposed to having to replace significant parts such as the radiator or intercooler out of pocket. After all, this vehicle is purpose-built to run at high speed in some of the hottest places on earth such as Death Valley.

I am not too sure what their goldilocks temp zone would be but just from a highway drive and not towing seems a bit high for an everyday vehicle. It has capabilities but I think they knew most buyers of the raptor were going to use it much less aggressively. I mean our F350 towing a backhoe on the highway runs around 215F. That might be apples and oranges but manufactures do skimp on somethings or else there wouldnt be a need for after market.

 

[TurboS]

These oil temps are normal operating range. I see the same oil temps on the highway in 40 degree weather.

 

[Bschurr]

Typically, oil temp under 220* is considered “normal”. Obviously, cooler is better than hotter as it relates to all things friction (except when trying to make fire) but your observed temps seem OK and nothing I would worry about. YMMV

 

[Ape Factory]

German cars typically run hotter oil temps in the winter and cooler months and once temps cross 70 Fahrenheit, they cool down. I'd see 225F at anything below 70 degrees at highway speeds. Generally oils need to be above water's boiling point so any condensation that collects is burned off quickly along with volatiles. Anything below 250F is just fine for modern oils, synthetic or not. I'd see temps around 240-250F on the track, V8 engine, 8800 rpm redline when I was working it hard.

My theory is the hotter oil temps in winter months is for emissions purposes and the Braptor is probably the same in that regard. But it could have to do with their prescribed oil change intervals and wanting to burn off water and volatiles from gas getting by the piston rings. Those two items will degrade an oil's performance fairly quickly. Heat will too but it has to be HOT.

If you're running in the 225F range, that's pretty much "ideal" from the factory viewpoint. I tuned my German car and ran oil temps around the 200 to 210F range, with cycling above 212 for short periods. I mated that with a transmission thermal management system I designed and it virtually eliminated heat soak and kept the car's performance very stable. I also changed my oil every 5K instead of 10K (just like the Braptor) and used a high quality full ester base oil from Motul.

 

[Shelby392R]

Typically, oil temp under 220* is considered “normal”. Obviously, cooler is better than hotter as it relates to all things friction (except when trying to make fire) but your observed temps seem OK and nothing I would worry about. YMMV

cooler the better was pretty much my entire point, to 195ish anyhow.