Prestone is recalling bottles of “Shop Pro RV & Marine Antifreeze” sold at AutoZone. Bottles were improperly filled with a product containing methanol, which is poisonous in very small amounts to children, adults, pets, and wildlife.

You can quickly identify if it was the wrong antifreeze because it will be blue. Presumably, the bottles were filled with windshield wiper fluid, which is often made with methanol.

The bottles do not have the mandatory cautionary label for products containing methanol warnings, including that the vapors are harmful and the product can be fatal or cause blindness if swallowed. Also, the directions on the bottle for properly flushing a potable water system can fail to adequately remove the methanol, presenting a risk of ingestion. Products containing methanol pose a poisoning hazard through inhalation or if ingested.

Only bottles filled with blue fluid in one-gallon, clear bottles with date code FT21281 on the bottom of the bottle below the back label are included in the recall. “Shop Pro RV & Marine Antifreeze” is printed on the front of the bottles. If your bottle is filled with pink liquid, it is properly labeled, and it can be used. About 325 affected bottles were sold.

Consumers should immediately stop using the recalled antifreeze and contact Prestone for a full refund and instructions on how to dispose of the product properly. Consumers who have already used the mislabeled product in any potable water system, SHOULD NOT DRINK WATER FROM THE SYSTEM and immediately contact Prestone Products for instructions on how to properly flush their water system.

The recall notice says that customers should contact Prestone toll-free at 866-625-5322 Monday through Friday from 8 a.m. to 5 p.m. CT to get instructions or online at or and click on Safety Notice at the bottom of the page for more information. However, at the time of this article’s release, neither link provided information about this recall.