Oil Temp Overheat warning!
Thread Starter
Melting Slicks
Joined: Jul 2010
Posts: 2,759
Likes: 819
From: SUFFIELD CT USA 2023 C8 CORVETTE UN-MODIFIED FINALIST
2023 C8 of the Year Finalist - Unmodified
Oil Temp Overheat warning!
I was doing Parade laps at Lime Rock Park Northeast Granp Prix and my '16 Z51 gave oil overheat warning and then coolant temps went up !
It was 89 degrees and problem started on third and final lap. I KNOW you are supposed to use 15w-50 for track use but it was only 3 laps though we did hit over 100 mph.
Car cooled down immediately as I was pulling off track and after about 5 minutes I shutdown and fan ran for a good 10 minutes.
Comments please ?
It was 89 degrees and problem started on third and final lap. I KNOW you are supposed to use 15w-50 for track use but it was only 3 laps though we did hit over 100 mph.
Car cooled down immediately as I was pulling off track and after about 5 minutes I shutdown and fan ran for a good 10 minutes.
Comments please ?
Safety Car
Joined: Feb 2002
Posts: 3,725
Likes: 366
From: Montoursville Pa
First thing I did to My 16 Z51 A8 after pace laps at Watkins Glen was a Dewitts radiator, GM radiator was just too small, after a couple more years I went to Their 70 MM racing radiator.
Stock just wouldn't cut it
Stock just wouldn't cut it
Thread Starter
Melting Slicks
Joined: Jul 2010
Posts: 2,759
Likes: 819
From: SUFFIELD CT USA 2023 C8 CORVETTE UN-MODIFIED FINALIST
2023 C8 of the Year Finalist - Unmodified
Went out again this morning .
78 degrees and I kept the rpms from banging off the limiter.
Oil & coolant never got above 212F !
78 degrees and I kept the rpms from banging off the limiter.
Oil & coolant never got above 212F !
Tech Contributor
Joined: Jan 2015
Posts: 5,687
Likes: 1,450
I was doing Parade laps at Lime Rock Park Northeast Granp Prix and my '16 Z51 gave oil overheat warning and then coolant temps went up !
It was 89 degrees and problem started on third and final lap. I KNOW you are supposed to use 15w-50 for track use but it was only 3 laps though we did hit over 100 mph.
Car cooled down immediately as I was pulling off track and after about 5 minutes I shutdown and fan ran for a good 10 minutes.
Comments please ?
It was 89 degrees and problem started on third and final lap. I KNOW you are supposed to use 15w-50 for track use but it was only 3 laps though we did hit over 100 mph.
Car cooled down immediately as I was pulling off track and after about 5 minutes I shutdown and fan ran for a good 10 minutes.
Comments please ?
Safety Car
Joined: Feb 2002
Posts: 3,725
Likes: 366
From: Montoursville Pa
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,008
From: Texas
I was doing Parade laps at Lime Rock Park Northeast Granp Prix and my '16 Z51 gave oil overheat warning and then coolant temps went up !
It was 89 degrees and problem started on third and final lap. I KNOW you are supposed to use 15w-50 for track use but it was only 3 laps though we did hit over 100 mph.
Car cooled down immediately as I was pulling off track and after about 5 minutes I shutdown and fan ran for a good 10 minutes.
Comments please ?
It was 89 degrees and problem started on third and final lap. I KNOW you are supposed to use 15w-50 for track use but it was only 3 laps though we did hit over 100 mph.
Car cooled down immediately as I was pulling off track and after about 5 minutes I shutdown and fan ran for a good 10 minutes.
Comments please ?
Last edited by 96GS#007; Jul 17, 2022 at 04:53 PM.
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Tech Contributor
Joined: Jan 2015
Posts: 5,687
Likes: 1,450
Here’s why I think it’s a fluke. As far I know the oil sensor stops reading at 302 degrees which I and some others have hit with no warnings. It takes a while for oil temps to creep up. Coolant temp usually hits first. 3 parade laps is nothing for a z51 what’s your oil level ? I m thinking the sensor messed up momentarily
Sr.Random input generator
Joined: Jan 2008
Posts: 7,767
Likes: 2,196
From: Sammamish, WA
I was doing Parade laps at Lime Rock Park Northeast Granp Prix and my '16 Z51 gave oil overheat warning and then coolant temps went up !
It was 89 degrees and problem started on third and final lap. I KNOW you are supposed to use 15w-50 for track use but it was only 3 laps though we did hit over 100 mph.
Car cooled down immediately as I was pulling off track and after about 5 minutes I shutdown and fan ran for a good 10 minutes.
Comments please ?
It was 89 degrees and problem started on third and final lap. I KNOW you are supposed to use 15w-50 for track use but it was only 3 laps though we did hit over 100 mph.
Car cooled down immediately as I was pulling off track and after about 5 minutes I shutdown and fan ran for a good 10 minutes.
Comments please ?
I personally prefer OEM radiators, and we're lucky to have the 51mm OEM radiator (that comes standard with 2018+ A8 Z06s) as an option, for only $300 shipped. In my experience, it performs just as good as DeWitts' 70mm radiator. DeWitts' design induces much more turbulence (intentionally to increase heat exchange), which I think drops the air flow at high speeds enough to nullify the benefit at track use. I've tried them all, and OEM upgraded one works about just as good at 1/4 price. Your mileage may vary, of course.