Quote:
Originally Posted by COcyclist
Thermostats get weak over time. I would swap yours if you don't hold 195 when warmed up. These diesels do better for mpg when up to full temperature. There is a guy on TDIClub experimenting with a 205 degree thermostat and he feels he has gained several mpg from that alone.
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Yes I agree they do wear out. I've done a few lately on the 06 Cat C8s at work. I just wanted to verify that the sensor was not lying to the computer. I took an infrared gun and shot it yesterday when I got off the highway and yes it is accurately low
I will have to look into the higher temp stat and I will modify one to fit if I need to so I get the 205° .Thanks for the input! When I do I'll post the results.