I probably shouldn't compare the cooling system between our trucks and a car, but it has got me wondering.
My commute to school involves driving on the highway, 25 miles both home and back. On cooler/cool days my volvo's engine temp gauge usually reads at least a tick down from the middle after driving on the highway for a while. Now I know that isn't really a bad thing, I was just wondering why it's like that. When I drive my truck the engine temp needle doesn't change much. My friend suggested that the cooling system in my car is more efficient than the one in my truck, but it is an older car and has me puzzled. In fact, the SGII just shows only a few degrees in drop. In the truck, my normal operating temp is 184F, on the highway on a cooler day is 181F
The picture was from today, it was actually half-way between the 3rd and 4th tick mark...the engine just started warming up more as i was idling at a light.