Have this (new to me) 86SDL. Unlike the 300D I had before the temp will come up to 80-82C if I am around town or driving below 50. However on the road it runs to 102C for periods, and drops back, then runs up again. The 300D just came to temp and stayed there. I am wondering if this is an indication of a faulty thermostat, or perhaps the fans are not coming on as they should. So far since I have had the car our outside temp has been 0-25F most days. It also starts well when plugged in, but requires more crank time and runs rough the first minute or so after a cold start, could this be a glow plug problem??? Gave the 300D to my kid and am thinking of asking to trade!!!