| thanks Guys
A very interesting/helpful thread - I had been wondering about the temps on my ST4s. I get similar readings of about 80c with highs of 110c when stationery in traffic in hot weather. I am used to having a clear "red zone" so you know it is too hot. you don't get that on a digital readout. All I could find in the owners manual was a comment that 120c was when you should start to worry!
Daryl | 
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