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If you add a oil cooler is there any reason not to have oil going through it at all times? TIA

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Old 07-26-2003, 11:10 AM
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If you add a oil cooler is there any reason not to have oil going through it at all times? TIA
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Old 07-26-2003, 11:15 AM
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Default Yes. You will want to install a thermostat so that oil does NOT always go through the cooler.
If you have oil going through the cooler at all times, the oil won't heat up to operating temperatures as quickly as it should.
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Old 07-26-2003, 11:18 AM
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What temp should the thermostat be set at for the S4?
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Old 07-26-2003, 11:21 AM
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Default I've heard around 215-220. You probably want the oil temp above the boiling point of water, but not
much higher than that.
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Old 07-26-2003, 12:12 PM
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The RS4 thermostat works at 175F from what I can tell.
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Old 07-26-2003, 03:17 PM
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Default It varies a bit. But I've seen it from 175-210 based on how cold it is out.
I've gone to 230 on track days...that's it.
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Old 07-26-2003, 08:49 PM
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can i put an RS4 thermostat in without an oil cooler for people like me in the desert
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Old 07-26-2003, 09:28 PM
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Default you could...and bypass the oil cooler. You can also get a hotter thermostat too.
But to be honest, the RS4 oil thermostat is the expensive part...and you might as well spend the extra 30% onthe whole kit.
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Old 07-26-2003, 10:12 PM
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Default On very cold days (under 40F, rare in Florida) It would never go higher than 175. No matter how hard
I tried.

From that I pretty much concluded it opens at 175F.
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yay, got to blow away one of these today.




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