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      09-21-2017, 11:11 AM   #1
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Engine Oil Temperature

Manual says the optimal operating temperature is around 120 which I believe it's in the middle. It took about 1/2 hour or so in 10 deg C weather for me to get to 120. At what temperature would it be acceptable to punch the engine?
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      09-21-2017, 11:49 AM   #2
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I usually wait until the oil is at 160F. (71C) On the JB4 tuning boxes, they do not turn on and allow full "tuned" boost until 160F hits, so I would think that's a safe point of reference.
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      09-22-2017, 11:48 AM   #3
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Quote:
Originally Posted by scadagawd View Post
Manual says the optimal operating temperature is around 120 which I believe it's in the middle. It took about 1/2 hour or so in 10 deg C weather for me to get to 120. At what temperature would it be acceptable to punch the engine?
Additonally 'warm - up' involves more than just the oil or motor. Gearbox and differential take time and your brakes should also have some use before you decide to apply strong throttle inputs. These are systems that need to work together.
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      09-22-2017, 11:53 AM   #4
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Quote:
Originally Posted by DSTR View Post
Quote:
Originally Posted by scadagawd View Post
Manual says the optimal operating temperature is around 120 which I believe it's in the middle. It took about 1/2 hour or so in 10 deg C weather for me to get to 120. At what temperature would it be acceptable to punch the engine?
Additonally 'warm - up' involves more than just the oil or motor. Gearbox and differential take time and your brakes should also have some use before you decide to apply strong throttle inputs. These are systems that need to work together.
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Quote:
Originally Posted by scadagawd View Post
Manual says the optimal operating temperature is around 120 which I believe it's in the middle. It took about 1/2 hour or so in 10 deg C weather for me to get to 120. At what temperature would it be acceptable to punch the engine?
Additonally 'warm - up' involves more than just the oil or motor. Gearbox and differential take time and your brakes should also have some use before you decide to apply strong throttle inputs. These are systems that need to work together.
Awesome. Any ideas on how long you need to wait or additional indicators you should be aware of?
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      09-26-2017, 12:02 AM   #5
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I generally drive around for like 30 minutes before I start going all out.
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      09-26-2017, 06:16 AM   #6
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Quote:
Originally Posted by scadagawd
Manual says the optimal operating temperature is around 120 which I believe it's in the middle. It took about 1/2 hour or so in 10 deg C weather for me to get to 120. At what temperature would it be acceptable to punch the engine?
Hmm, in 30c weather and a 2hr highway drive, I couldn't get the temp to 120 lol. It stayed around 1/3 on the gauge? Maybe around 90
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      09-26-2017, 10:05 AM   #7
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When it reads "OK"
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      09-26-2017, 11:00 AM   #8
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Originally Posted by McPurrs View Post
When it reads "OK"
There?s just a bar on the oil temp display that starts at 70 and mid point at 120. Have yet reached 120 even driving for 1/2 hour. I don?t ever see an OK.
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      09-26-2017, 02:56 PM   #9
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Originally Posted by scadagawd View Post
There?s just a bar on the oil temp display that starts at 70 and mid point at 120. Have yet reached 120 even driving for 1/2 hour. I don?t ever see an OK.
OK is a combined coolant and oil reading.

Are you driving in sport or sport+? That puts the car into a more aggressive cooling profile and will hold coolant temps around 80C, heavily based on ambient air also.

Since the car has a combined water->oil and Air->oil heat exchanger coolant temps will affect oil temps as well.

EDIT: Didn't realize you had an LCI with the new dash.. yeah those are different.
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Last edited by cookiesowns; 09-26-2017 at 04:46 PM..
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      09-26-2017, 02:59 PM   #10
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Quote:
Originally Posted by cookiesowns View Post
Quote:
Originally Posted by scadagawd View Post
There?s just a bar on the oil temp display that starts at 70 and mid point at 120. Have yet reached 120 even driving for 1/2 hour. I don?t ever see an OK.
OK is a combined coolant and oil reading.

Are you driving in sport or sport+? That puts the car into a more aggressive cooling profile and will hold coolant temps around 80C, heavily based on ambient air also.

Since the car has a combined water->oil and Air->oil heat exchanger coolant temps will affect oil temps as well.
I was just driving in comfort but never saw the OK. Am I on the right display?
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      09-26-2017, 04:46 PM   #11
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Quote:
Originally Posted by scadagawd View Post
I was just driving in comfort but never saw the OK. Am I on the right display?

Ohhh you have a 2018 LCI with the new dash... haha, yeah those are different. I don't think the OK is there, but rather you have a temp readout.. If it's in the middle it's perfect, if its slightly to the left of the middle should still be fine.

I would say when you hit about 80C the car is pretty much warm. 120C is actually too high in my opinion.

I like to keep oil temps around 105C, and coolant around 100C. Lower if possible when running the car hard.
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      09-26-2017, 10:28 PM   #12
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Quote:
Originally Posted by cookiesowns View Post
Quote:
Originally Posted by scadagawd View Post
I was just driving in comfort but never saw the OK. Am I on the right display?

Ohhh you have a 2018 LCI with the new dash... haha, yeah those are different. I don't think the OK is there, but rather you have a temp readout.. If it's in the middle it's perfect, if its slightly to the left of the middle should still be fine.

I would say when you hit about 80C the car is pretty much warm. 120C is actually too high in my opinion.

I like to keep oil temps around 105C, and coolant around 100C. Lower if possible when running the car hard.
Awesome. Thanks.
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      09-28-2017, 06:44 AM   #13
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Quote:
Originally Posted by scadagawd View Post
Manual says the optimal operating temperature is around 120 which I believe it's in the middle. It took about 1/2 hour or so in 10 deg C weather for me to get to 120. At what temperature would it be acceptable to punch the engine?
Generally wait for the P3 Gauge to pull up to at least 75 before making any serious pulls.

Honestly I rarely hit 120 unless on a very warm day
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      09-28-2017, 10:19 AM   #14
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Quote:
Originally Posted by lopm2 View Post
Quote:
Originally Posted by scadagawd View Post
Manual says the optimal operating temperature is around 120 which I believe it's in the middle. It took about 1/2 hour or so in 10 deg C weather for me to get to 120. At what temperature would it be acceptable to punch the engine?
Generally wait for the P3 Gauge to pull up to at least 75 before making any serious pulls.

Honestly I rarely hit 120 unless on a very warm day
Sounds good. Thanks.
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      10-05-2017, 02:54 AM   #15
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Quote:
Originally Posted by lopm2 View Post
Generally wait for the P3 Gauge to pull up to at least 75 before making any serious pulls.

Honestly I rarely hit 120 unless on a very warm day
How bad does the P3gauge obstruct airflow? As much as I like the Awron gauge I don't want to lose an entire vent to it, so I'm thinking of going with the p3. (I am familiar with the p3 stuff in my Audi, although I wish it didn't eat up the OBD2 connector and could instead tap in somewhere else for data.)
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      10-05-2017, 03:34 AM   #16
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Back in the day the nominal temperature of oil to be specified weight was 100C

This is my UK car at temp.
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      10-05-2017, 10:19 AM   #17
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Does the 2018 dash finally have an oil temp readout or just coolant?
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      10-05-2017, 07:51 PM   #18
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Quote:
Originally Posted by CosmosMpower View Post
Does the 2018 dash finally have an oil temp readout or just coolant?
Per the manual, its a combination of both:

"Engine temperature display
Displays the current engine temperature,
based on a combination of coolant and engine
oil temperature. As soon as the optimum operating
temperature has been attained, the indicator
is in the center position.
If the engine oil or coolant, and thus the engine,
become too hot, a Check Control message
is displayed too."

I dont think mine has ever reached the "center" position though, really tends to be right around 200*F after 20-30 minutes of driving. My commute to work is about 20 minutes of stop and go traffic in >90*F temperature and the engine temp usualy doesnt reach much higher than 160.
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      10-17-2017, 01:56 AM   #19
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Quote:
Originally Posted by CosmosMpower View Post
Does the 2018 dash finally have an oil temp readout or just coolant?
Read out on 2017 is definetly oil temp and not coolant.
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      10-17-2017, 11:14 AM   #20
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The M4 has disappearing led's on the tac letting you know when the DME felt it was ok to run it hard....does the M2 now have this?
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      10-17-2017, 01:27 PM   #21
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Quote:
Originally Posted by cookiesowns View Post
Read out on 2017 is definetly oil temp and not coolant.
I don't think that's right. The booklet for my 18 says combo of water and oil temp.
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      10-17-2017, 03:14 PM   #22
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I checked mine with an OBDLink tool and the instrument showed the oil temp. The water temp was about 20C higher than oil, and the instrument reading was exactly the actual oil temp. After warm up both water and oil temp was nearly identical.
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