Coolant keeps your engine from overheating by circulating through passages in the block and cylinder head, absorbing heat and carrying it to the radiator where it releases that heat to the air. Different engines call for different coolant types—some use traditional green coolant, others require orange or pink extended-life formulas—and mixing the wrong type can cause corrosion or clogging. Understanding what coolant your engine needs, how to check the level, and when to flush and replace it matters for preventing overheating, leaks, and internal engine damage.
These guides cover how coolant systems work, what the different colors and types mean, how to spot a coolant leak, and what happens when coolant breaks down over time. You'll learn why coolant concentration matters, how to read your owner's manual for the right product, and what signs point to a coolant problem before it becomes expensive.