Penn Grade® 30W Grade 1 break-in oil is highly loaded with zinc and phosphorous and formulated specifically to meet the critical lubrication needs of new engines during break-in while allowing proper seating of rings and component run-in. Superior oil film strength from Penn Grade® base oils offer complete anti-wear, anti-scuffing protection for even the most demanding of applications, such as those presented by break-in of engines with flat tappet cams. Not for use in cars with catalytic converters.
