Should I get an oil cooler?

bvl

Car is not in limp mode, so performance should be exactly the same. You got some empirical data here? Besides the feel good butt dyno

For a street car if you are < 230 in the hot you are fine. Folks who track there cars have different thermal requirements and its a good investment.

100 deg, AC on, and my 2010 never goes above 225. I see temps creep up 5deg during stop and go while the HW seems to be steady at 220 in the very warm.

< 80 deg and normal temps are 210-215F.

I run 5/30 Pennzoil Ultra, FWIW.

- b

chops

i also run penzoil ultra 5w/30. however, ive noticed that once you hit the 220 degree range, the ECU starts to pull timing. you can definitely tell there is some lost power. its not limp mode, no thats at 260 degrees, but there is definitely something different going on at 220 degrees. since installing the 25 row this weekend, temps stay in the 180-190 range and its MUCH better

UNKNOWN_370

I've never felt any power loss between the 220 and 250 range. actually, optimum temps on this car imho is the 220-230 range. doesn't make sense.

bvl

Sorry, gotta throw down BS flag. Hard to say definitely with out raw data points such as data logging that shows how oil temperature effects the timing curve, or before/after data logs referencing timing, engine temp, IAT, etc...

I'm not saying its not possible, but from my experience (which includes using a full aftermarket ECU to tune a car), intake air temp (IAT) will alter your timing curve, not coolant/oil temp.

Temp inputs are used to warn the driver that things are not good. You would not want to pull just a bit of timing here...you want the driver to go 'woah!' Neo style: hence limp mode

- b

cossie1600

You are 100% right, the other guy is completely wrong. I have multiple loggers on my car, it doesn't matter. If your car is moving anyway, the IAT should really level out and drop to where it should be.