Rick's Free Auto Repair Advice

Posts Tagged: universal coolant

What is universal coolant and can you really use it in any engine?

What is universal coolant? Is it really all makes, all models? No, it’s not. If a single coolant could actually work on all makes, all models, then carmakers have wasted decades trying to find just the right coolant formula for their engines. Universal coolant is basically a scam Coolants are designed to remove heat from the engine, prevent freezing in cold weather, prevent corrosion, and lubricate the water pump. But engines are made with many different metals; cast iron, aluminum, aluminum alloys, magnesium, copper, brass, and plastic, rubber and all … Read More

Is DexCool bad

The truth about DexCool coolant Mechanics say they hate DexCool and blame it for all kinds of problems. Most aren’t the fault of DexCool. Here’s the REAL scoop on Dex-Cool and coolants in general. First some coolant history Most of the older green coolants were silicate based. The coolant’s job is to prevent freezing and cooling system corrosion. In the case of the green coolants, the silicates deposit a thin film of anti-corrosive material on metal surfaces to “PASSIVATE” them. There are two problems with silicate. First, it’s somewhat abrasive, … Read More

Using the correct coolant matters

Using the correct coolant matters There are many different types and colors of antifreeze. But only one is right for your particular engine and using the correct coolant matters. Using the wrong antifreeze or mixing different types of antifreeze can damage your engine and cooling system. The correct coolant does three jobs • It lowers the freezing point of the cooling system in winter • It raises the boiling point of the cooling system in summer • It protects the engine and cooling system from rust and corrosion year round. … Read More

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