Proper Oil Temperature For L98

[hpbadger]

Hello all. Recently took a 600 mile trip in my 89. The oil temperature was ran a little hot to my liking with the A/C on......got up to 240-250. Coolant stayed below 220 at all times. Now this is AZ so it was hot outside and I was driving pretty fast...between 90 and 110 on two long stretches.

I am going to change the oil but was wondering what is the proper oil temps for normal and highway driving conditions?

Thanks!!!!

hpb

 

[Jeb]

When you change your oil, how about letting us know what the old stuff looks like when it comes out.

That seems to be a tad on the warm side but not something I'd worry too awfully much about.

 

[hpbadger]

Thanks. I will see how it looks. I checked the oil yesterday and it wasn't black. Oh I forgot the SES code light would come on after running over 245 oil temp for a while....it will not come on when oil temp is lower.

 

[redvett]

Hello all. Recently took a 600 mile trip in my 89. The oil temperature was ran a little hot to my liking with the A/C on......got up to 240-250. Coolant stayed below 220 at all times. Now this is AZ so it was hot outside and I was driving pretty fast...between 90 and 110 on two long stretches.

Have you cleaned the leaves & papers out between the A/C & the radiator lately? Also check the timing. Should be 6 deg.

 

[WhalePirot]

between 90 and 110 on two long stretches.

What? That's all? :L

We just drove to the Grand Canyon for the weekend; caught the only day of snow and limited visibility! :eyerole Seems the traffic on the I'state was doing 90.

Those oil temperatures seem about right for those conditions, with a stock car. The cleaning recommendation is always good, especially before the AZ summer.

Also ensure that your front spoiler is intact, as it is essential to proper cooling air.

 

[Moonunit 451]

What oil are you running? If it's a good synthetic it's good to about 300 degrees, I belikeve. I didn't un over 230 at sustained speeds over 120 in over 95 degrees, but I have an oil cooler.

Sounds a little high, but nothing to be overly worried about. It could even be an inacurate readout.

 

[hpbadger]

What oil are you running? If it's a good synthetic it's good to about 300 degrees, I belikeve. I didn't un over 230 at sustained speeds over 120 in over 95 degrees, but I have an oil cooler.

Sounds a little high, but nothing to be overly worried about. It could even be an inacurate readout.

I had been using Castrol 5/30 Just switched over to Mobil 1 synthetic. Took car out for nice long run and temp says about the same. I am not going to worry too much about it. I am going to pull the radiator and clean it today so maybe that will help cool motor a little perhaps. Newton's book says the motor is designed to run a little hot so I will have to go with that for now. Thanks for all input!

 

[hpbadger]

What? That's all? :L

We just drove to the Grand Canyon for the weekend; caught the only day of snow and limited visibility! :eyerole Seems the traffic on the I'state was doing 90.

Those oil temperatures seem about right for those conditions, with a stock car. The cleaning recommendation is always good, especially before the AZ summer.

Also ensure that your front spoiler is intact, as it is essential to proper cooling air.

I took the radiator out and found a good amount of crud in the housing. I cleaned it and cut 3 semi-rectangular holes with a dremel tool in the bottom of the casing. Hopefully this will help with keeping it clean and air flow!