Originally Posted by .c2

Is this because the sensor is in the return tube or something from the cooler?



After installing my stillen oil cooler it seems to fluctuate a lot more.. but I'm hovering around 180 degrees still during hot summer times rather than 210ish. If that's the case then my oil cooler doesn't really do anything other than when I'm on the hwy, which reads like 140 degrees lol