[ShrimpBurrito]

Bob,

Yea, I too was wondering were that 158 degree number came from, and presumed it may have had something (??) to do with the fact the systems were originally designed for 18-wheelers.

I too noticed the temp readings go up while standing still, and then go back down after driving. But I'm not sure that's actual tire air temp vs. simply the temp of the sensor, especially in the sun. I wouldn't think the sensor would take nearly as long to heat up as the tire.

I'm very interested in the fact you aren't seeing temps more than 5 degrees above ambient. What are other folks seeing?

wmtire - I hope you'll chime in here. What's a good upper operating temperature?

Dave