Thread: Fuel economy
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Old 12-30-2012, 06:16 PM   #29
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Join Date: Sep 2011
Location: New York
Posts: 9,474
My Ride: '04 330Ci
Originally Posted by chrism24 View Post
On the way home despite hitting 100mph the highest the coolant got was 78C (and that only happened at a stop light, when I was doing 100 it was at 68C). So is it my thermostat?
If it was me, I'd now replace the thermostat just so you'd know for sure that it is good. That is not working properly.
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