Now that I have an Oil Temperature gauge installed in the Fairing, what is the normal temperature under cruising speeds on flat roads, (baseline temperature). I used a digital temperature sensor in the oil cap in my 07 Ultra Classic before, but I couldn't see it until I was parked, and that could be as high as 250*, that I remember. Also, does anyone know at what temperature does the Oil Cooler adaptor thermostat opens, sending the oil through the cooler?

 

I believe the thermostat opens at 185 degrees F.

 

Thanks, I'll try to see if that is happening. The manual states that if the thermostat isn't opening to replace the entire adaptor. Just want to make sure it is working properly.

 

Thermostat is a simple themo-mechanical actuator, it starts to move at 180F, it is fully open at 220F. There is no common "normal" oil temp, over time you will establish what is normal for your bike under different operating conditions. Sustained highway speed is where the oil will get the hottest, the faster and longer you go, the hotter it gets.

 

Mine normally runs +/-230* in weather of 80* or more. Highest I've ever seen it was 290* climbing Pikes Peak last June.

David

 

Mine stays in the 230 range. Before I got a retune and added the jagg fan assisted cooler I stayed around 285.

 

I found the oil temp to run at 210*ish on the initial test run at 65* ambient temperatures.