M156 engine oil temps?
06-03-2019, 07:09 PM
#1
Senior Member
Thread Starter
M156 engine oil temps?
I use the standard 5w-40 and usually see around 99C-107C when operating. Usually around 99C-102C. Is this normal and I’m curious what others get? I ran a Blackstone labs oil test and everything g checked out ok.
06-04-2019, 10:39 AM
#2
MBWorld Fanatic!
That is average for me as well. If the oil gets too hot, the auxiliary oil cooler fan will kick on. When I had my defective oil temp sensor replaced, my tech took a test drive.
When he came back, the oil temperature registered 215 degrees, and the fan was on full blast. He neglected to set the parameters using Star Diagnostic. After reset, everything was okay.
When he came back, the oil temperature registered 215 degrees, and the fan was on full blast. He neglected to set the parameters using Star Diagnostic. After reset, everything was okay.
06-04-2019, 12:57 PM
#3
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2007 Mercedes E63 AMG
here is what i posted in a previous thread from 2017.
https://mbworld.org/forums/w211-amg/...ml#post7118813
I too run Motul 8100 5w-30, but with Liquimoly Mo2S additive.
with aggressive driving i've briefly hit higher temps, but once the fans kicked on, they quickly dropped. I haven't tracked my car so I cannot speak to that. for aggressive street driving I've noticed that if you drive harder in stop and go traffic, but not full throttle the fans don't seem to come on. In full throttle, I've noticed that the fans do come on and temps quickly drop at around 1C every 20-60 seconds in 85F ambient temps. In 90F+ ambient temps temperature drop can be longer 60-180 seconds per 1C. Same with freeway flogging...maybe there is a built in thermostat? if I'm hooning on the freeway but don't go full throttle...temps stay a bit high, but when i give it full throttle the temps begin to drop then stabilize.
the W211 E63 tries to keep temps at 100-105C. actual is anywhere between 100-105 in winter daily driving to 109-115C in summer driving.
100C is pretty optimal for oil temps for power production.
http://www.chevelles.com/forums/13-p...e-most-hp.html
https://bobistheoilguy.com/forums/ub...il_Temperature
http://www.elephantracing.com/techto...emperature.htm
http://www.hotrod.com/articles/engine-oil-temperature/
I too run Motul 8100 5w-30, but with Liquimoly Mo2S additive.
with aggressive driving i've briefly hit higher temps, but once the fans kicked on, they quickly dropped. I haven't tracked my car so I cannot speak to that. for aggressive street driving I've noticed that if you drive harder in stop and go traffic, but not full throttle the fans don't seem to come on. In full throttle, I've noticed that the fans do come on and temps quickly drop at around 1C every 20-60 seconds in 85F ambient temps. In 90F+ ambient temps temperature drop can be longer 60-180 seconds per 1C. Same with freeway flogging...maybe there is a built in thermostat? if I'm hooning on the freeway but don't go full throttle...temps stay a bit high, but when i give it full throttle the temps begin to drop then stabilize.
the W211 E63 tries to keep temps at 100-105C. actual is anywhere between 100-105 in winter daily driving to 109-115C in summer driving.
100C is pretty optimal for oil temps for power production.
http://www.chevelles.com/forums/13-p...e-most-hp.html
https://bobistheoilguy.com/forums/ub...il_Temperature
http://www.elephantracing.com/techto...emperature.htm
http://www.hotrod.com/articles/engine-oil-temperature/
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chibi_kantoku (11-08-2023)
06-05-2019, 12:00 PM
#6
MBWorld Fanatic!
Before I changed out my oil temp sensor, it would fluctuate between 81-112. So I knew something was up.
Make sure after installation, that someone calibrates the sensor. Because we went thru two of them, thinking they're bad.
Make sure after installation, that someone calibrates the sensor. Because we went thru two of them, thinking they're bad.
