What is the typical service life of most "long life" coolants?

The typical service life of most "long life" coolants is indeed five to seven years or 100,000 to 150,000 miles. Long life coolants are formulated with advanced additives that help to prevent corrosion and scale buildup within the cooling system, which contributes to their extended effectiveness. Unlike conventional coolants that may require replacement more frequently, long life formulations can provide reliable protection for an extended period, reducing the need for frequent maintenance and potential breakdowns.

Regular monitoring of coolant condition is still important, as factors such as vehicle usage, environment, and the specific formulation of the coolant can influence its longevity. Following the manufacturer's recommendations for coolant type and service intervals ensures optimal engine performance and extends the life of the cooling system components.