water temp vs. oil temp ? - Team Camaro Tech
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post #1 of 5 (permalink) Old Jun 18th, 07, 10:31 PM Thread Starter
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Question water temp vs. oil temp ?

hey fellas! here's the skinny: i've got my cooling system figured out and working flawlessly. i've got a ron davis radiator with dual spal fans hooked to a painless thermostatic temp sender that comes on at 200 degrees (205 on the head-mounted mechanical guage) and off at 180 (180 on the gauge as well). the sender is mounted by the thermostat housing in the forward edge of the intake. the thermostat is a 180 degree unit. the car runs at 180-185 with the fans off in normal traffic. when it gets to 205 after a long red light, it only takes about 3 minutes to cool down to 180, the fans kick off, and all is well. she never sees more than 185 on the freeway in 100 degree weather.

the questions:
1. is keeping the coolant this cool allowing the oil to heat up enough to evaproate any sludge-causing water?
2. what is the heat difference in the oil compared to the coolant?
3. do i need to disconnect the temp sender and let the coolant climb to 230* or so every now and then to evaporate any condensation in the oil?
4. or will regular oil changes make it not necessary?

any and all thoughts and comments will be appreciated. now that i have it all together, i'd like to keep it working for the long haul and avoid any potential ill side-effects.
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post #2 of 5 (permalink) Old Jun 19th, 07, 03:43 AM
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Re: water temp vs. oil temp ?

No. 4, regular oil changes and proper coolant temp, and driving the car for 10-15 miles, will keep moisture/condensation at a minimum.

Oil temps are alittle higher than coolant as the oil covers more surface area than the coolant. Shoot your oil pan with a temp gun to compare.

Just my thoughts.

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post #3 of 5 (permalink) Old Jun 19th, 07, 04:59 AM
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Re: water temp vs. oil temp ?

in my vette, which has an oil temp gauge, the oil temp runs 10 degrees hotter than the coolant when the coolant temp is below 210. Above 210, the oil gets hotter faster, and generally runs 20 degrees hotter than the coolant.





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post #4 of 5 (permalink) Old Jun 19th, 07, 07:51 AM
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Re: water temp vs. oil temp ?

15 - 20 min @ 180 is what is needed to burn off condensing moisture. Combine that with a functioning PCV system and you are good to go.

Oil suspends contaminates as part of it's protective function, contaminates build up over time as a byproduct of internal combustion. The conditions you put your engine through determin how rapidly contaminates build up. Idling, WOT pulls, lugging the engine, heavy loads like towing and of course poor air quality accelerate contaminate build up and require more frequent oil changes.

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post #5 of 5 (permalink) Old Jun 19th, 07, 04:37 PM Thread Starter
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Re: water temp vs. oil temp ?

Quote:
Originally Posted by DjD View Post
15 - 20 min @ 180 is what is needed to burn off condensing moisture. Combine that with a functioning PCV system and you are good to go.
wonderful. then she should be good to go! thanks for all the help!
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