Why does my car cool down at highway speeds?
Why does my car cool down at highway speeds? Colder outside air means more cooling from the radiator. As your your other question, "could any serious damage have been done with the engine below operating temp at highway speeds..." The answer is probably not. You may have lost some fuel economy, but cooling an engine too much shouldn't be too much of a problem. How are cooling capacity and engine speed related? Relationships among engine speed, cooling capacity, and COP are shown in Fig, 6. Relatioships between engine speed and COP-h are shown in Fig. 7. COP denotes the ratio...