Looking for a head gasket sealer? Our team of experts narrowed down the best head gasket sealers on the market. Read this review and save yourself time and money.

Does Head Gasket Sealer Work? Many car owners on a budget swear by head gasket sealers, especially in regards to vehicles using the 2.5-liter flat-four cylinder engine by Subaru.

Affected Focus RS models will get a new head gasket and, if needed, a new cylinder head, all covered under Ford's warranty.