How Much Does a Radiator Flush Cost

January 27, 2012

You should have a radiator flush performed on your vehicle every 24,000 to 36,000 miles or every 2 to 3 years, whichever comes first. A radiator flush is a type of service that involves draining and refilling the radiator and your car's cooling system. A flush will help remove dirt and debris that builds up in your radiator, and also replaces fluid that may be acidic or contaminated.

Average Costs of Radiator Flushes

Depending on the age of your vehicle, the make and model and the type of coolant used in it, you should expect to pay anywhere between $50 and $150 to have your car radiator flushed. For this price, you should get a cooling system pressure test performed on your vehicle, labor and new antifreeze coolant. The shop should also provide proper disposal of the old antifreeze for you.

Potential Additional Costs

Some repair shops offer long life or extended life antifreeze coolants that can last up to five years or 100,000 miles. These types of extended life coolants will usually cost you another $10-$20 per gallon. Some repair centers may also offer the addition of other chemicals that are formulated to help improve the performance of your cooling system, as well as help reduce oxidation and rust.


You can find money-saving coupons for radiator flushes at many company websites that perform the service. Nationwide companies such as Jiffy Lube or Pep Boys often have coupons available. Occasionally, your local new car dealership may offer money-saving discounts as well.