Water pump lubricant, do I use it? Ford Truck Enthusiasts Forums Antifreeze Leak Fix on Buick Lucerne and GMC Canyon What is Antifreeze? Why Does My Vehicle Need It? Shield Lubricants Gotta mix oil with your coolant to keep your water pump lubricated : r Justrolledintotheshop The cooling system plays a critical role in ensuring the engine operates smoothly and efficiently. To prevent the engine from overheating and ensure it runs optimally, the coolant must be at the