As of 2015, Amazon.com has many favorable reviews of stop-leak radiator products, such as the Bar's Leak HDC Radiator Stop Leak Tablets, which has a four-star review. K-Seal Multipurpose Step Permanent Coolant Leak Repair also has a four-star rating on Amazon.com.
Walmart has favorable four-star reviews of Bar's Leak Radiator Stop Leak. Powder Bar's Leaks Liquid Aluminum Radiator and Heater Core Stop Leak has four stars in Advanced Auto Parts reviews, with 79 percent of reviewers stating they would recommend the product to a friend. Alumaseal World's Best Stop Leak Radiator Sealer has mixed reviews of 2.5 out of five stars in AceHardware reviews, with some reviewers giving the product one star.