Oil temp
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
It may be the sensor itself, "Lo" is the default setting for the sensor..When mine went bad it wouldn't read anything but "Lo"..These sensors aren't cheap, I paid $80.00 for mine..If you have a Factory Service Manual it should tell you how to check the wires and switch first to make sure they aren't the problem....WW
Last edited by WW7; May 28, 2012 at 08:45 PM.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
If it $19.00 its not the oil temp sensor, I've never seen one that cheap. It's a sensor, not a switch..I drove mine for a few months without any known oil temperture showing , but its better to have one thats working. Most normal cars don't have an oil temp gauge, just an oil pressure gauge...WW
Last edited by WW7; May 28, 2012 at 09:16 PM.
Thread Starter
Drifting
Joined: May 2011
Posts: 1,534
Likes: 53
Cliff, I tried to ground the wire but it still read LO so I just cleaned it and replugged it and all worked well. I don't understand what I did wrong because I'm sure your advice on how to test is correct. I'm just glad it's working again. I feel like Im $100 richer. Thank you for the assist.
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Race Director
Joined: Apr 2003
Posts: 17,699
Likes: 1,667
From: moraga ca
Glad you got it working. Most cars don't have an oil temp sensor. Unless you are into road racing, it's really not that important. I use it at the drags to make sure my oil temp is at 150 before I make a pass. Now an oil pressure gauge is a different matter.
Drifting
Joined: Dec 2011
Posts: 1,439
Likes: 23
From: mesa az
I just changed my Castrol regular motor oil to Mobil 1 10W-30 synthetic. I also put a K&N oil filter on. Now I noticed my oil temps are as high 260+ degree's. Normal driving never raised my temp to over 260 degree's. Any thoughts ? My L-98 has over 193,000 miles on it and still runs strong. I can reach 140mph no problem (3500 rpm) and faster if I wanted to push it. All stock except for K&N air filter, smooth air coupler and a upgraded air foil. Other than that 2 Dynomax mufflers. I usually drive around 70-80 mph on the freeway. I dont want to kill that old engine with high oil temps. I have had the car less than a year and it is my first Corvette. Sadly I always drove Nissan Z sports cars. Never again.
Thread Starter
Drifting
Joined: May 2011
Posts: 1,534
Likes: 53
I loved the 280 ZX's that being said my oil temp has never gotten that high unless you count the time I over heated and blew a head gasket. But then again I've never been able to get mine to go 140 mph
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
Team Owner
Joined: Sep 2003
Posts: 20,179
Likes: 673
From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
My 86 with a Dewitts stayed in the 25-28 higher than water.
Recently I installed the OEM water/oil exchanger.
Now the oil is about 20 higher.
BTW This on a two hour journey at 60mph with 90 OAT
Recently I installed the OEM water/oil exchanger.
Now the oil is about 20 higher.
BTW This on a two hour journey at 60mph with 90 OAT
Drifting
Joined: Dec 2011
Posts: 1,439
Likes: 23
From: mesa az
My oil temp never went over 255 degree's even when I was driving over 100mph. Recently I changed my regular Castrol motor oil to synthetic Mobil 1 10W-30. Since doing that my oil temps have been higher than ever before. My coolant tends to run 200-220. At night my coolant stays 190 degrees on the freeway. I was told maybe go with a thicker synthetic oil. I am tempted to install a oil cooler. I have over 193,000 miles on this engine. I hate to trash it with high temps. Am I over reacting ? Stock L-98
Melting Slicks
Joined: Dec 2008
Posts: 2,772
Likes: 64
From: Mystic CT
In AZ I would be running 20-50 it's never going to get cold enough to need thinner than 20. With all those miles you have gained a bunch of bearing clearance compared to when new. I also would not consider the factory gauges race grade and certainly no lab grade. Comparative to what is normally seen a better guideline. Your old worn out oil pump is at capacity now just feeding the engine I suspect the load of an oil cooler would cut pressure to the bearings and that will be the END...
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
In AZ I would be running 20-50 it's never going to get cold enough to need thinner than 20. With all those miles you have gained a bunch of bearing clearance compared to when new. I also would not consider the factory gauges race grade and certainly no lab grade. Comparative to what is normally seen a better guideline. Your old worn out oil pump is at capacity now just feeding the engine I suspect the load of an oil cooler would cut pressure to the bearings and that will be the END...
....WW