Oil Temps
Instructor
Joined: Sep 2011
Posts: 131
Likes: 0
From: Illinois
Full Synthetic Mobil 1
176 Degrees fully warmed up, stock motor.
55 Psi oil pressure when cruising, and 38 PSI when idle and fully warmed up.
Just replaced my oil pressure sensor cause it was reading 65 and spiking 80 psi.
Keep in mind you might be different by up to +-5 degrees and about +- 5 psi depending on the condition of your cooling system and engine wear.
176 Degrees fully warmed up, stock motor.
55 Psi oil pressure when cruising, and 38 PSI when idle and fully warmed up.
Just replaced my oil pressure sensor cause it was reading 65 and spiking 80 psi.
Keep in mind you might be different by up to +-5 degrees and about +- 5 psi depending on the condition of your cooling system and engine wear.
Thread Starter
Intermediate
Joined: May 2011
Posts: 49
Likes: 0
From: Kansas City Missouri
After driving around the block a few times, about (6mins) my oil press was 49 and my oil temp was 151-161. My cool temp driving was 185-195 and my cool temp sitting went from205 to 235.
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Sounds just fine to me. My 92 is an LT1 and was thus built without an oil cooler. I've got to push the car a little to get the oil temps above 200. If I'm just driving it will eventually creep up there, but it take a pretty long trip. The earlier cars did have an oil cooler so it would serve to reason that they would run cooler. Some TPI guys will chime in but I think you're just fine.
Now I've heard it said that you should drive it hard every now and then and get those oil temps up above 212* otherwise the moisture will never boil out of the oil and degrade it faster. Sounds reasonable but I have done no testing to prove it one way or the other.
Now I've heard it said that you should drive it hard every now and then and get those oil temps up above 212* otherwise the moisture will never boil out of the oil and degrade it faster. Sounds reasonable but I have done no testing to prove it one way or the other.
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Figure on oil temps being 15-30 degrees higher than coolant temps once the engine is up to normal operating temps. With my 87, in-town driving will show oil temps close to coolant temps until the car has been driven for 20-30 minutes. Then I see a slight increase in oil temps. I use Mobil-1 5W30.During track days in hot weather, I'll see coolant temps in the 200-220 range and oil temps around 220-240. Temps drop quickly on cool-down laps to a normal 180 coolant and 200 oil temps.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
This is the norm and what I have always seen ...WWWhat are your coolant temps? I have never had oil temps any higher then 220-222 with either my old L-98 or my new 383, even on the hottest days........WW
Last edited by WW7; Feb 24, 2012 at 08:48 PM.
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Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
Sounds normal for a stock setup, alot of the guys on here don't like there cars running at the factory settings, which is what your temps are..There's nothing wrong with your temps being at 200-220 but alot of us feel better with coolant temps closer to 180-190.. Alot of use are old school and temps that high just don't feel right...
. With the setup I have now my car won't go over 195 no matter how hot it gets and my normal running temp is 180-183...
....WW
. With the setup I have now my car won't go over 195 no matter how hot it gets and my normal running temp is 180-183.......WW
Last edited by WW7; Feb 24, 2012 at 09:05 PM.
Thread Starter
Intermediate
Joined: May 2011
Posts: 49
Likes: 0
From: Kansas City Missouri
My car dies down as if its about to shut off (sometimes) when it gets around 230*, do you guys think that has anything to do with the engine getting to hot? I dont feel comfortable with the factory temps so what do I have to do to get my fan to come on at a 195*-200*?
Team Owner
Joined: Feb 2006
Posts: 23,215
Likes: 117
From: San Antonio Texas
Turning the fans on won't do anything if you're already rolling more than 35mph anyway, because the air is already flowing across the radiator at road speed. If the temp goes up more than you want to see while your in slow traffic or stopped at a light, turning on the A/C will trigger the fans. The car will actually cool down while sitting dead still with the A/C on.
Burning Brakes
Joined: Feb 2010
Posts: 1,013
Likes: 2
From: California City Ca
I about the same but in the HOT summer time my car runs much warmer.
I figure it the 105+ temp comming of the ground just putting very hot air in to the radiator.
Melting Slicks
Joined: Feb 2005
Posts: 2,057
Likes: 5
From: Bay Shore, NY
My 85 with 152K using synthetic 10w40, the oil is generally 10-15 degrees higher than the coolant temp. Normally cruising temps for oil are about 190 and 185 for coolant. City and idle temps are around 215 for oil and 195 for coolant. Oil pressure is around 55-60 cruising as well when warm. Using 5w30, then oil temps and pressure are different however. I find the oil and coolant temps are closer to each other and the idle pressure is greater.
Last edited by ejscarfo; Mar 2, 2012 at 05:49 PM.
Racer
Joined: Jan 2012
Posts: 296
Likes: 0
From: Lakeland FL
I just replaced my thermostat with a 165 deg and,of course, with the engine running cooler the oil is running cooler. Oh,1994 coupe btw. The gauge says the oil should be at 215 (likely to vaporize moisture...boiling point is 212) and coolant temp should be about 185. With the stock thermostat: coolant ran around 205 and reached 220 in traffic, 235 is heavy traffic and would take about 10-15 minutes to get to temp; Oil used to run right at 212-216 and took about 30 minutes to get there. With the new thermostat: coolant runs around 178-185,205 in traffic; oil is only reaching 185-195. I reach 205 on the oil today, but it took forever (ambient temp ~75 deg). It should be fine like this, but I would like the oil to get to at least 212 to release the water vapor. I think a 185 thermostat with a larger than stock opening should do the job.
...sorry...looks like I was thinking out loud a bit.
...and running Mobile 1 Full Synthetic 10W30
...sorry...looks like I was thinking out loud a bit.
...and running Mobile 1 Full Synthetic 10W30
Last edited by Bobby Joe; Feb 26, 2013 at 09:45 PM.
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
Ultimately your temps are still controlled by the fan operating temps set in the tune regardless what stat you run
