Posts Tagged: drain coolant

How to Properly Drain Coolant: Avoiding Common Mistakes

The Best Way to Drain Coolant: Disconnecting the Lower Radiator Hose Do a search for how to drain coolant and you’ll always see “open the radiator drain” as the first step. That’s the worst advice possible. No professional would ever drain coolant using the radiator drain. They always disconnect the lower radiator hose. Here’s why. Radiator drains almost always leak or break Modern radiators have an aluminum core with plastic tanks on top and bottom or both sides. The plastic is glass-filled nylon. With time and heat, the nylon becomes … Read More