Quote:
Originally Posted by Jeff@TopGearSolutions
Normal operating temp on stock vehicles with the oil cooler is ~238F +/- 10. I've seen some non oil cooled stock vehicles tip over to 255-260 on hot days normal driving.
Most other vehicles (High Performance and exotics) barely tip over 215F when pushed to their limits.
BMW designs these cars to run hot and for 1 reason only and that is emissions purposes.
Every other performance vehicle runs an average of 170F oil temps up to 215F max.
Keeping that in mind it's really up to interpretation and your feelings if the 238-250F range is "normal" or not. It's normal for your stock BMW for emissions purposes but from a performance and longevity standpoint I'd beg to differ if its the ideal temp.
I for one would at least tell guys with the oil cooler to run the thermostat by pass which means I'm partial to seeing lower temps then factory recommended specifications.
I'd tell the OP to get an aftermarket oil cooler and thermostat bypass but I really don't want to sound like a salesmen. I genuinely do believe that it should be done though.
|
Quote:
Originally Posted by Jeff@TopGearSolutions
BMS Oil cooler thermostat bypass is open all the time. The only downisde would be for someone who lives in temperatures that are always cold as the car would take longer to warm up. I think Stett made a lower t stat but I don't much about it or if it's still available.
The T stat bypass typically sees a 15F drop in average oil temp.
|
Is
this the BMS thermostat bypass that you're referring to?
I for one would at least tell guys with the oil cooler to run the thermostat by pas
Are you referring to the standard/OE oil cooler? I presume this would be the same for the 135i.
The T stat bypass typically sees a 15F drop in average oil temp.
Is this for cars that have standard/OE oil coolers or aftermarket oil coolers?
Is an aftermarket oil cooler required to use the thermostat bypass? If not, then I presume an aftermarket oil cooler would just help to lower oil temps considerably more.
