Clay: The only time my
oil temp has risen to indicated "170" was on a recent trip while accending the foothills and working the motor a little. I too thought I was running too cool but after checking thermostat recently, confired that the above was correct. I have 72" capilary tubes and realize I only need 36" for the water temp gauge. 72" for the
oil is about right as the bulb goes into the bottom front of the pan. Maybe they loose accuracy through the length of the capilary tube by loosing heat used for needle movement?? With the smaller diameter S/W mechanical water temp gauge of the same style that I had before with a 36" tube it was dead on. Opinions?????
Rick