Oil temperature????
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,658
Likes: 25
From: Rochester Minnesota
Oil temperature????
Took our AE for a 250 mile drive yesterday. The engine oil temp was running at 198 while the engine coolant was cycling between 190 and 192. Is that normal 
?? I was driving 70-75 mph in 65 degree ambient.
I was expecting to see the oil at or below the temperature of the coolant. What do others see?
Thanks.
?? I was driving 70-75 mph in 65 degree ambient.I was expecting to see the oil at or below the temperature of the coolant. What do others see?
Thanks.
Race Director
Joined: Jun 2004
Posts: 19,459
Likes: 48
From: Schaumburg IL
CI 7-8-9-11 Veteran
St. Jude Donor '06-'10, '13
That's about normal. The fans don't cycle on when you are going that fast. 198+ is perfect for oil temp, you coolant temp is fine too. The second fan is not even set to go on until your coolant reaches 225. The engine was designed to run that hot mainly for emissions. If youre in stop and go traffic with 70-90 degree temps outside, you can see oil and coolant get up to 225-230.
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,658
Likes: 25
From: Rochester Minnesota
That's about normal. The fans don't cycle on when you are going that fast. 198+ is perfect for oil temp, you coolant temp is fine too. The second fan is not even set to go on until your coolant reaches 225. The engine was designed to run that hot mainly for emissions. If youre in stop and go traffic with 70-90 degree temps outside, you can see oil and coolant get up to 225-230.
Terminal Vette Addict
Joined: Feb 2007
Posts: 1,634
Likes: 46
From: Philly PA
Yeah the coolant has a radiator, and more air flow. Also viscosity differences. When the fans go on, and/or you are moving quick you can expect the coolant in most vehicles to drop faster than the oil will. The coolant than cools the engine... that cools the oil.
How did I do on my book report mom :-)
Race Director
Joined: Jun 2004
Posts: 19,459
Likes: 48
From: Schaumburg IL
CI 7-8-9-11 Veteran
St. Jude Donor '06-'10, '13
You want your oil at that temp 198-210 is the sweet spot for oil temp. If your oil temps are too low, you don't burn off any condensation.
The LS1 was designed to run at these temps.
The LS1 was designed to run at these temps.
Melting Slicks
Joined: Feb 2004
Posts: 2,819
Likes: 1
From: Toledo Ohio
CI 6-7-8-9 Veteran
St. Jude Donor '07
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Pro
Joined: Aug 2006
Posts: 561
Likes: 2
From: Arlington TX
It is normal
Took our AE for a 250 mile drive yesterday. The engine oil temp was running at 198 while the engine coolant was cycling between 190 and 192. Is that normal ?? I was driving 70-75 mph in 65 degree ambient.
I was expecting to see the oil at or below the temperature of the coolant. What do others see?
Thanks.
?? I was driving 70-75 mph in 65 degree ambient.I was expecting to see the oil at or below the temperature of the coolant. What do others see?
Thanks.
Pro
Joined: Mar 1999
Posts: 545
Likes: 4
From: Taylors SC
I also assume your using Mobil 1. In fact, 1992 they removed the oil cooler when Mobil 1 became the factory fill.
Racer
Joined: Sep 2003
Posts: 490
Likes: 7
From: Slinger WI
It's not really the temperatures that I was concerned about, it was the fact that the oil temperature was higher than the coolant temperature. On other vehicles that I've driven (with oil temperature gauges), the oil temperature was always cooler unless running high rpm's for an extended time.
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,658
Likes: 25
From: Rochester Minnesota
Thanks, that's really the info I was looking for.
As far as running oil at 200 degrees vs 180degrees---either temperature will get rid of what little condensation occurs with today's engines. It will just take a little longer at a 180 degrees.
You sure don't need the oil at 212 degrees to "boil" out the condensation. Warm water (even ambient temperature water) will disappear from a pan over a little while.
I added an oil temperature gauge to my '67 as it always ran warm. The only time I saw the oil temperature higher than the coolant was while running at 115 mph for more than a half hour on a new interstate in Montana in the 70's
. There's no oil cooler on it either.
But if 198-200 degrees is what the rest of you are seeing, than I'm OK
.
As far as running oil at 200 degrees vs 180degrees---either temperature will get rid of what little condensation occurs with today's engines. It will just take a little longer at a 180 degrees.
You sure don't need the oil at 212 degrees to "boil" out the condensation. Warm water (even ambient temperature water) will disappear from a pan over a little while.
I added an oil temperature gauge to my '67 as it always ran warm. The only time I saw the oil temperature higher than the coolant was while running at 115 mph for more than a half hour on a new interstate in Montana in the 70's
. There's no oil cooler on it either.But if 198-200 degrees is what the rest of you are seeing, than I'm OK
.
