Oil Temperature
Thread Starter
Instructor
Joined: Aug 2003
Posts: 173
Likes: 2
From: Dallas, TX
Normal Oil Temperature???
I just put a new cam in my car and I know that it is running a little lean because of the tuning from the old cam that I had in the car.
The coolant temperature seemed to run warmer after the change but when I gave it more gas, the temperature would decrease so I diagnosed it as a faulty thermostat. The temperature would go up to the higher 180's and lower 190's. After the thermostat change, it runs about 4-6 degrees(178) more than normal.
My question is what is the normal operating temperature for the oil because it probably is a better indicator of engine operating temperature. Mine is 198 right now and I never paid attention to it before so I'm wondering if this is normal after about twenty minutes of driving. I use Mobil 1 oil if that makes a difference.
Thanks
[Modified by bobby1999c5, 2:22 AM 12/15/2003]
[Modified by bobby1999c5, 2:24 AM 12/15/2003]
[Modified by bobby1999c5, 2:27 AM 12/15/2003]
The coolant temperature seemed to run warmer after the change but when I gave it more gas, the temperature would decrease so I diagnosed it as a faulty thermostat. The temperature would go up to the higher 180's and lower 190's. After the thermostat change, it runs about 4-6 degrees(178) more than normal.
My question is what is the normal operating temperature for the oil because it probably is a better indicator of engine operating temperature. Mine is 198 right now and I never paid attention to it before so I'm wondering if this is normal after about twenty minutes of driving. I use Mobil 1 oil if that makes a difference.
Thanks
[Modified by bobby1999c5, 2:22 AM 12/15/2003]
[Modified by bobby1999c5, 2:24 AM 12/15/2003]
[Modified by bobby1999c5, 2:27 AM 12/15/2003]
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
Re: Normal Oil Temperature??? (bobby1999c5)
198 seems a little low for oil temp actually.
Mine normally runs in the 210 ballpark. The highest I've seen was 245 this past summer.
:cheers:
Mine normally runs in the 210 ballpark. The highest I've seen was 245 this past summer.
:cheers:
Racer
Joined: Sep 2002
Posts: 483
Likes: 0
From: Austin Tx
Re: Normal Oil Temperature??? (Y2Kvert4me)
You actually WANT the oil to reach 212 degrees in normal running, just to make sure that all the water vapor is driven off the oil and this prevents corrosiion in those sections of the engine serviced by oil. On the other end, you need the oil to remain below 300 degrees to avoid loosing viscocity and allowing metal to metal contact. Some might say 285 instead of 300, but remember, we are talking Mobil 1. In any event, few will see these temperatures unless they visit road racing tracks and drive for extended periods of time.
Le Mans Master
Joined: Oct 1999
Posts: 8,205
Likes: 40
From: Tucson AZ
Re: Normal Oil Temperature??? (bobby1999c5)
I just put a new cam in my car and I know that it is running a little lean because of the tuning from the old cam that I had in the car.
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Team Owner
Joined: Jun 2001
Posts: 26,714
Likes: 344
From: Houston, TX
Re: Normal Oil Temperature??? (carpe dm)
During our hot summers mine runs 210 - 215 during "normal" driving. I noticed yesterday with the temps in the 50's that cruising at about 65 mph it was at 198, so I think you are right about normal.
Racer
Joined: Nov 2003
Posts: 416
Likes: 0
From: Burleson TX
Re: Normal Oil Temperature??? (Mitch Alsup)
You actually WANT the oil to reach 212 degrees in normal running, just to make sure that all the water vapor is driven off the oil and this prevents corrosiion in those sections of the engine serviced by oil. On the other end, you need the oil to remain below 300 degrees to avoid loosing viscocity and allowing metal to metal contact. Some might say 285 instead of 300, but remember, we are talking Mobil 1. In any event, few will see these temperatures unless they visit road racing tracks and drive for extended periods of time.
Thread Starter
Instructor
Joined: Aug 2003
Posts: 173
Likes: 2
From: Dallas, TX
Re: Normal Oil Temperature??? (Zen06)
Thanks for all of the responses. I'm getting the car tuned tomorrow, so I guess we'll see if it will run any cooler or if it is lean at cruising speeds.
Thanks,
Bobby
Thanks,
Bobby
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