DS vs D driving M57

henri777 · 12-10-2017, 01:31 PM

The temperatures here winter time varie around 0C (32F) to -20C (-4F).

So the temperatures in the engine also are lower for longer time and in tough - degrees we should cover the radiator to keep the engine in good operating temperature.

Also the speeds here are basically 90-103 km/h (55-63 mph).
It brings a thought to my head, that driving in SPORT-mode could be better to the engine? The M57 keeps 5th gear 2000RPM 97km/h (60mph) vs. DRIVE-mode 6th gear 1600RPM or less.

Town-driving on Drive-mode the RPM-s are low and so the CBU problem might be faster to come? While the SPORT-mode revs the engine more, which helps the soot/carbon to leave the engine better?

Could I be correct?

anielsen71 · 12-10-2017, 01:49 PM

Hi there
Do you know what normal operation temperature is?
I have an Awron display in mine and have changed the oil drain plug to one with a temp sensor. And I can see that my oil temp is around 60 degrees Celsius at ambient temp at 0-5 degrees Celsius and highway driving. I know the actual temp is a bit higher since the sensor is at the oil pan and will be cooled by the wind while driving.
I just think it’s a bit low.....

henri777 · 12-10-2017, 02:38 PM

Quote:

Originally Posted by anielsen71

Hi there
Do you know what normal operation temperature is?
I have an Awron display in mine and have changed the oil drain plug to one with a temp sensor. And I can see that my oil temp is around 60 degrees Celsius at ambient temp at 0-5 degrees Celsius and highway driving. I know the actual temp is a bit higher since the sensor is at the oil pan and will be cooled by the wind while driving.
I just think it’s a bit low.....

I don't know the exact perfect oil temp, but if your coolant temp is in correct parameters, it is assumed that your oil is too.

In the cartrige, where you have the temp. sensor, the oil temp. is probably lower, it is not in use there.

dmanb2b · 12-10-2017, 03:29 PM

Coolant thermostat is stamped at 88c

BB_cuda · 12-12-2017, 08:12 AM

I've measured oil and coolant temp before and they were within 1 or 2 deg C. I used iCarly though so not sure where in oil circuit that temp is measured. I run about 85-86C due to no EGR cooler.

anielsen71 · 12-12-2017, 11:23 AM

Coolant is at the normal 84-90 but the oil was at the max at 58-60 deg c on the way home today where I drove approx 110km in 2 deg c ambient temp.
Could be that the sensor is faulty then.....

12-10-2017, 01:31 PM	#1
henri777 New Member 4 Rep 11 Posts Drives: 2006 e91 330xd Join Date: Nov 2017 Location: Estonia iTrader: (0)	DS vs D driving M57 The temperatures here winter time varie around 0C (32F) to -20C (-4F). So the temperatures in the engine also are lower for longer time and in tough - degrees we should cover the radiator to keep the engine in good operating temperature. Also the speeds here are basically 90-103 km/h (55-63 mph). It brings a thought to my head, that driving in SPORT-mode could be better to the engine? The M57 keeps 5th gear 2000RPM 97km/h (60mph) vs. DRIVE-mode 6th gear 1600RPM or less. Town-driving on Drive-mode the RPM-s are low and so the CBU problem might be faster to come? While the SPORT-mode revs the engine more, which helps the soot/carbon to leave the engine better? Could I be correct?
	Appreciate 0 Tweet Quote

12-10-2017, 01:49 PM	#2
anielsen71 Lieutenant Colonel 562 Rep 1,502 Posts Drives: F36 435xd Join Date: Mar 2012 Location: Behind the wheel iTrader: (0) Garage List 2015 BMW F36 435d [8.00]	Hi there Do you know what normal operation temperature is? I have an Awron display in mine and have changed the oil drain plug to one with a temp sensor. And I can see that my oil temp is around 60 degrees Celsius at ambient temp at 0-5 degrees Celsius and highway driving. I know the actual temp is a bit higher since the sensor is at the oil pan and will be cooled by the wind while driving. I just think it’s a bit low..... __________________ Brgds Allan ‘15 F36 435xd Gran Coupé Ex: E46 330d, E91 330dA
	Appreciate 0 Quote

12-10-2017, 03:29 PM	#4
dmanb2b Banned 2134 Rep 3,361 Posts Drives: G07, F97, F30, E90, E46, E30 Join Date: Jul 2016 Location: NY iTrader: (5)	Coolant thermostat is stamped at 88c
	Appreciate 0 Quote

12-12-2017, 08:12 AM	#5
BB_cuda Brigadier General 769 Rep 3,555 Posts Drives: 2011 335D Msport, 2013 X5D Join Date: Nov 2011 Location: Clear Lake, Texas iTrader: (0)	I've measured oil and coolant temp before and they were within 1 or 2 deg C. I used iCarly though so not sure where in oil circuit that temp is measured. I run about 85-86C due to no EGR cooler.
	Appreciate 0 Quote

12-12-2017, 11:23 AM	#6
anielsen71 Lieutenant Colonel 562 Rep 1,502 Posts Drives: F36 435xd Join Date: Mar 2012 Location: Behind the wheel iTrader: (0) Garage List 2015 BMW F36 435d [8.00]	Coolant is at the normal 84-90 but the oil was at the max at 58-60 deg c on the way home today where I drove approx 110km in 2 deg c ambient temp. Could be that the sensor is faulty then..... __________________ Brgds Allan ‘15 F36 435xd Gran Coupé Ex: E46 330d, E91 330dA
	Appreciate 0 Quote