Your car’s cooling system works constantly to keep engine temperatures safe. The radiator, water pump, thermostat, fans, and coolant reservoir all play specific roles in managing heat. Understanding ...

Elizabeth Nelson, coolant program manager at Polaris Laboratories, a fluid-analysis company in Indianapolis, Ind., tells a story that would strike fear into the heart of any fleet manager. A class-8 ...

The internal combustion engines that power most modern cars generate huge amounts of heat as they run. While it's normal for your vehicle's engine to become quite hot while driving, too much heat can ...

Responsible car ownership means checking your fluid levels at least once or twice a month. If you are a first-time diesel engine owner, you may wonder if it's safe to use regular coolant in your ...

Your car's cooling system has one job — to keep the engine from cooking itself. But even with fresh coolant and a shiny new radiator, there's a silent killer that could be eating it from the inside ...

Coolants are the least understood fluid in a heavy duty truck engine today. But a little attention to them can avert serious problems for your fleet. Photos: Prestone If you’re a maintenance manager ...