Breaking in a new or rebuilt engine correctly will determine how well it performs. We have tested several break-in oils and found Joe Gibbs Break In Oil to have the right amount of zinc additives for the flat tappet Briggs and Stratton LO 206 engines and 120 engines. It also promoted excellent ring seating in a shorter time period. We recommend this oil for all 4 stroke break-ins.
Sold by the quart.