Originally Posted by poolman

Doru--you and Fudman got me wondering---had to check it out. The mileage in my car in the has gone south in the last few weeks. Cold weather has finally hit here in the Blue Ridge Mts--So after reading this thread yesterday--I unlocked the dash went on a 60 mile jaunt. The cooling temp never got above 78C in the whole drive. Thats at 70 miles per hour most of the way--Looks like I need a stat also--wondering if the temp sensor at the back of the engine should be replaced also--But 78%C is not promoting good fuel consumption