BRAD PENN®Penn Grade 1® Racing Oils contain highly effective detergent and dispersant additives to guarantee exceptional engine cleanliness as well as oxidation and foam inhibitors that offer protection against thermal degradation and air entrainment. In addition to their unique base oil cut, increased concentration of “zinc” (zinc dialkyldithiophosphate a.k.a. ZDDP) provides outstanding anti-wear/anti-scuffing protection for engines employing either ‘flat tappet’ or roller cams. BRAD PENN® Penn Grade 1® Racing Oils have been evaluated by a number of premiere camshaft manufacturers with tremendous success. We here at T1 Race Development have seen an increase in cam and rocker life while using BRAD PENN® Penn Grade 1® Racing Oils. We now offer 10w40, 20w50, and the break in specific oils.