in case I'm not the only one who didn't know.. oil cooler

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02-21-2007, 04:33 PM

davenew

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in case I'm not the only one who didn't know.. oil cooler

You wouldn't want to bypass the coolant/oil heat exchanger that the oil filter attaches to because it uses hot coolant to warm the oil up faster. For some reason I only thought of it as cooling hot oil.

If you installed an oil/air oil cooler you could bypass it to prevent possible oil to coolant contamination but then the oil would take much longer to heat up, especially in the winter.

Does that sound right?

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02-21-2007, 04:39 PM

phillys4951

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oil coolers come with a thermostat that only opens the extra flow area

when a certain temperature is reach... oil heat up should be the same w/ and w/ out

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02-21-2007, 05:27 PM

S4_Cinci (I S'edTFA)

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That is true as long as you don't bypass the OEM unit. I believe it is possible to bypass it, but

like davenew says, that ain't a good idea. Lots of nOObs on this forum these days; that's a good point!

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02-22-2007, 04:36 AM

davenew

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so the stock unit has a thermostatic valve?

I admit I didn't search for info on this. I was thinking about it while trying to get the car warmed up before fats runs, and noticed it takes much longer for the oil to warm up (above the lowest reading) than the coolant.

From what I understand, the RS4 oil cooler installs a separate piece under the oil filter that does have a thermostat. I didn't realize the stock oil cooler has one.

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