30/05/2018
What Causes Rust In Cooling System?
1. Lack of Proper Coolant
Using the proper coolant and antifreeze in your car is key. Don’t pour water into the radiator, as water will oxidize the system’s metal moving parts, eventually causing rust
2. Air in Cooling System
Rust in the cooling system can also be caused by air getting into the radiator when the engine cools down. As the coolant cools down, it contracts which can cause an air pocket.
*The rust in the coolant causes wear on the water pump seal and the water pump bearings. It may cause engine to overheat in severe cases.