Sonic_RC

iTrader: (15)

I'm just curious how many of you guys are running oil coolers? I recently installed one on my car but recently I noticed when I opened my oil cap it looks a little milky. I originally thought it might have been a possible blown head gasket but I brought it to my mechanic and assured me that wasn't the case. He think the oil cooler is the problem. He told me the oil cooler is causing my oil to run below boiling point thus making too much moisture causing the oil to look milky. He says my oil temp is running around 140-150degrees and should be closer to 190-200. Does anyone here have experience with this? Can anyone help shed some light on the subject?

NorthStyle

iTrader: (16)

Are you running a thermostatic sandwich plate?

Sonic_RC

iTrader: (15)

Ya mine's just a regular sandwich plate. I guess I should switch it out for a thermostatic one

NorthStyle

iTrader: (16)

From what I remember when I had my S14, myself and a lot of guys (in the UK, at least) used the thermostatic sandwich plates for both of the reasons you mentioned. First, the oil has to get up to a certain temperature to get rid of any condensation that may be there. I'm not sure what it may be on the 1/3UZ or 2JZ, but on the SR20DET it was around 200*. Second, because the thermostat doesn't open until a set temp, your engine "should" be at or near recommended operating temperature before it opens and starts flowing through the cooler. This would help alleviate your problem of the oil being 40-50* too cool, if what your mechanic said is correct. So basically [as far as I know], what he/she said was correct: your oil cooler is causing the problems.

This is based off of what I've learned... so there may be more to it. Hope it helps some.