Conventional green coolant lasts two to three years or 30,000 to 50,000 miles. Extended-life orange and red coolants last five years or 100,000 to 150,000 miles under normal operating conditions. The ...

Checking all of your car’s key fluids takes less than ten minutes with the engine cold or recently cooled. The six fluids to check are engine oil, coolant, brake fluid, power steering fluid, ...