Oil temps

[jpascual]

Hey all please forgive the lack of knowledge but this is my first bimmer (135i N54) and having some oil temp issues. Just replaced water pump. Any suggestions for keeping my oil temps down? Oil cooler? Radiator? Anything helps. Thanks in advance.

[WilsoN55]

Originally Posted by jpascual

Hey all please forgive the lack of knowledge but this is my first bimmer (135i N54) and having some oil temp issues. Just replaced water pump. Any suggestions for keeping my oil temps down? Oil cooler? Radiator? Anything helps. Thanks in advance.

I have the N55 but we have the same oil cooler.. BMS makes an internal component that is super super easy to change, also MHD can adjust your cooling targets, after installing the BMS component I had to switch back to the stock cooling profile with MHD because I couldn't even get up to full temp.

edit link:

https://burgertuning.com/products/sp...l-cooler-valve

[edycol]

Originally Posted by jpascual

Hey all please forgive the lack of knowledge but this is my first bimmer (135i N54) and having some oil temp issues. Just replaced water pump. Any suggestions for keeping my oil temps down? Oil cooler? Radiator? Anything helps. Thanks in advance.

What are oil temperature issues? What exact issue do you have?

[jpascual]

Originally Posted by edycol

What are oil temperature issues? What exact issue do you have?

My oil temps fluctuate between 230-245 degrees. Looking for anything that can help drop those down 10-15 degrees.

[jpascual]

Originally Posted by WilsoN55

I have the N55 but we have the same oil cooler.. BMS makes an internal component that is super super easy to change, also MHD can adjust your cooling targets, after installing the BMS component I had to switch back to the stock cooling profile with MHD because I couldn't even get up to full temp.

edit link:

https://burgertuning.com/products/sp...l-cooler-valve

Is this a drop in fit? Or would there be mods needed? Looks promising.

[edycol]

Originally Posted by jpascual

My oil temps fluctuate between 230-245 degrees. Looking for anything that can help drop those down 10-15 degrees.

Those are normal temperatures. You don't want temperature that low. Oil cooler thermostat opens at 230f.
Oil temperature must be above 212f, preferably 220-240.
Oil cooler is just there to maintain 230-260 (if possible) range. It is always good to have oil cooler, but don't worry about those oil temperatures. If you are not tracking car, forget it.

[JimD]

For a month or so some time ago I put an OBDII to bluetooth on my my car and used an app called torque to create virtual gauges of parameters my car does not give me. I was surprised that the maximum coolant temperature occurred at steady cruise. Hard acceleration lowered the coolant temperature. BMW programs our cars to run hot because they get ever so slightly better mileage that way. I don't agree that higher oil temperature is a good thing but it is how our cars are set up to run and trying to change it will be more difficult than I would want to deal with. Better just to use good oil and change it more often than BMW requires.

[edycol]

Originally Posted by JimD

For a month or so some time ago I put an OBDII to bluetooth on my my car and used an app called torque to create virtual gauges of parameters my car does not give me. I was surprised that the maximum coolant temperature occurred at steady cruise. Hard acceleration lowered the coolant temperature. BMW programs our cars to run hot because they get ever so slightly better mileage that way. I don't agree that higher oil temperature is a good thing but it is how our cars are set up to run and trying to change it will be more difficult than I would want to deal with. Better just to use good oil and change it more often than BMW requires.

Oil temperature MUST be well above 212f. Oil is made to sustain much higher temperatures. The viscosity at those temperatures is what high revolution engines need. Additives in oil work best above 212f. Moisture in oil also has to evaporate as well as gas, especially in direct injection engines.
Basically, running any reputable oil temperatures 250-270f are not of an issue. I ran Mobil1 0W40 293f on track before DME cut it.
230-240f is what all cars run on. My Toyota Sienna minivan runs around 235f.