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09-24-2017
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#1 |
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Join Date: Jun 2016
Location: Prior lake
Posts: 65
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Really high oil temp.
Today's question.
We all decided to go for a cruise today to some of our favorite roads in WI. It was hot today. 90 plus and THICK. Soupy thick. It ran fine at peppy cruising speeds but after 15 to 20 minutes at a really vigorous pace on a twisty road my oil temp shot up to around 280. High enough to get the "check gauges" light on. Its done something like this once before on a run to 150 where the oil temp shot up but not as high as today. It seems to fluctuate often. The oil has about 3500 miles on it. I just checked it yesterday and the correct amount is in there. It averaged about 230 all day but any amount of picking up the pace made oil temps increase noticeably. Admittedly as I've been fixing the nagging things on this car I haven't paid much attention to oil temp so I'm not sure what's normal. So. Should I be concerned? |
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09-24-2017
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#2 | |
   
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,154
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Re: Really high oil temp.
Quote:
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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09-24-2017
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#3 |
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Join Date: Jun 2016
Location: Prior lake
Posts: 65
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Re: Really high oil temp.
I assume that's the little radiator right under the nose of the car? What if there is nothing blocking it or wrong with it
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09-24-2017
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#4 |
 Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,168
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Re: Really high oil temp.
The oil cooler is sandwiched in with the radiator and AC condenser. how was your water temp? What was your oil pressure?
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold Last edited by We Gone; 09-24-2017 at 09:39 PM. |
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09-24-2017
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#5 |
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Join Date: Jun 2016
Location: Prior lake
Posts: 65
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Re: Really high oil temp.
They were spot on. No issues except high oil temp
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09-24-2017
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#6 | |
  
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,791
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Re: Really high oil temp.
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  Engine Lubrication System Functional Discussion
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Left Clickable links  -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 09-26-2017 at 01:22 AM. |
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09-24-2017
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#7 |
Join Date: Apr 2007
Location: Northern VA
Posts: 2,651
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Re: Really high oil temp.
What was your coolant temp when this occurred?
Usually oil and coolant temps track pretty close to one another during street driving.
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Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake |
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09-25-2017
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#8 | |
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Join Date: Jun 2016
Location: Prior lake
Posts: 65
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Re: Really high oil temp.
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I didn't look at the exact coolant temp but the gauge indicated it was perfectly normal. Coolant wasn't anywhere near overheating |
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09-25-2017
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#9 |
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Join Date: Apr 2007
Location: Northern VA
Posts: 2,651
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Re: Really high oil temp.
In the driving conditions you've mentioned to see that much difference (50 degrees F) between oil and coolant temperatures these are two possibilities I would look at in addition to the oil cooler inspection others have mentioned:
- Something defective with the oil temperature sensor or circuit. The oil temp sensor has two outputs. One is internally grounded and it's output is directly connected to the coolant temperature gauge. The other is externally grounded and output directly connected to the ECM which triggers the high temperature alarm and provides input for the digital oil temp display when selected. - Something abnormal going on within the engine that is creating a lot of heat for the oil to deal with which could be serious in which case you should have the engine inspected by a qualified person.
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Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake |
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09-25-2017
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#10 |
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Join Date: Jan 2017
Location: US
Posts: 233
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Re: Really high oil temp.
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