How do you clean old coolant?

How do you clean old coolant?

How Do You Do a Radiator Flush?

1. Open the radiator cap and coolant reservoir cap.
2. Find the radiator drain by consulting the owner’s manual.
3. Once the container is properly situated, open the drain.
4. Pour in your radiator flush as directed and fill the rest with water to about an inch below the top of the radiator opening.

What does it mean if your coolant is brown?

Coolant becomes brown from rust. If your coolant is brown, the coolant needs to be drained and the system flushed before it can be filled with fresh coolant. If the coolant is bubbling, there is a good chance that combustion gases from the cylinders are making their way into the coolant.

Why is my coolant brown and thick?

Why is my coolant brown and thick? That rust gives old coolant its orange-brown color. Oil-colored, creamy, very thick coolant might mean serious problems, including a cracked block or blown head gasket. Thick coolant can also occur because or the prior use of store-bought radiator leak stopper additive.

What does it mean when your coolant is dark green?

The color of healthy engine coolant is green (for ethylene glycol) or orange (for Dexcool). This is not good; it usually means that a head gasket, intake manifold, or transmission oil cooler is leaking oil or transmission fluid into the engine coolant.

Why does my coolant looks rusty?

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. This can cause rusting, while also creating wear on the water pump’s seal and bearings.

How often should I change my coolant?

A typical mechanic will recommend changing coolant every 30,000 miles. But many will tell you, changing the coolant is not even on their radar. An owner’s manual might recommend changing the coolant/antifreeze after the first 60,000 miles, then every 30,000 miles.

What happens if you don’t change your antifreeze?

The coolant can become more acidic over time and lose its rust-inhibiting properties, causing corrosion. Corrosion can damage the radiator, water pump, thermostat, radiator cap, hoses and other parts of the cooling system, as well as to the vehicle heater system. And that can cause a car engine to overheat.