Jeff Wong is back with more basic car care tips for you to keep your car safe, reliable and on the road to 200,000 miles. This time he showing us how to go about checking coolant level. Engine Coolant does more than cool the engine, though. It’s also what keeps it from freezing in the winter. So Winter or Summer, be sure to keep this critical fluid checked. If you find yourself adding coolant on a regular basis, get your car to a certified technician for a pressure check. You just might have sprung a leak.