C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

oil temp

Old May 4, 2009 | 10:39 PM
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hey guys and gals, new here, see my intro. but my pos. 84 that i acquired seems to have a oil temp issue. it starts out low, as normal, but will continually climb, until you shut it down. coolant temp stays around 200 to 210, but have seen the oil temp climb to 300 on a long drive. it does not smell burnt, and color is good... 20w/50 vr1. but i am in texas, very hot, and humid... whats up with this?
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Old May 4, 2009 | 11:31 PM
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How long of a drive and what were the conditions of the environment? I have a 96 and the oil gauge indicates ~210°F driving it 30 miles one way with an outside temp around 80°F.
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Old May 5, 2009 | 05:46 AM
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Two thoughts: 1.) No, oil temperature that hot and continuing to climb is not normal, and indicates a problem. 2.) Oil temperature climbing like that probably isn't "real", but a faulty temperature sensor or gage.

While it's Possible that the oil could really be doing what the gage says, it would mean a serious internal engine mechanical problem, like a spun bearing or something. You would know it...
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Old May 5, 2009 | 05:04 PM
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On my 84 I usually see oil temps 10 to 15 degrees higher than my coolant temp. The highest I recall ever seeing was about 240 on a hot summer afternoon in heavy traffic.

Jack
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Old May 5, 2009 | 05:24 PM
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It doesn't seem probable that the oil temp could be that high and your coolant stay at a steady 210, with oil at 300 degrees heat sink would eventually raise the whole temperture of the motor and coolant...WW
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Old May 5, 2009 | 10:08 PM
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You got a bad sender. Replace it. It might unintentionally be causing other issues that you don't know about, yet.
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Old May 6, 2009 | 10:42 PM
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Default oil temp

thanks guys, i dont really think that the oil is that hot, because it would look or smell burnt i would think... new to this car and just didnt know...
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Old May 6, 2009 | 11:36 PM
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Originally Posted by WW7
It doesn't seem probable that the oil temp could be that high and your coolant stay at a steady 210, with oil at 300 degrees heat sink would eventually raise the whole temperture of the motor and coolant...WW

Replace the sending unit....
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Old May 7, 2009 | 09:06 AM
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Originally Posted by maddmax
hey guys and gals, new here, see my intro. but my pos. 84 that i acquired seems to have a oil temp issue. it starts out low, as normal, but will continually climb, until you shut it down. coolant temp stays around 200 to 210, but have seen the oil temp climb to 300 on a long drive. it does not smell burnt, and color is good... 20w/50 vr1. but i am in texas, very hot, and humid... whats up with this?
I'd never run 50 weight oil
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