Driven DBR 15W-40 Conventional Diesel Break-In Oil - 1 Gallon Jug Mastercraft Safety Side B is AN-12

Side B is AN-12

1979-1981 GMC K2500

810 in OD Valve Seat

2003-2011 Cadillac Escalade ESV

Driven DBR 15W-40 Conventional Diesel Break-In Oil - 1 Gallon Jug Mastercraft Safety Side B is AN-12DBR promotes proper surface mating during the critical break in process and chemically assists with piston ring sealing. A low detergent level allows the fast burn ZDDP additive to adhere directly to all ferrous metal wear surfaces for maximum scuffing protection of flat tappet cams, bushing lifters, cam driven fuel pumps, turbocharger bearings and cylinder bores. Can be used in naturally aspirated and turbo diesel engines and is also safe for engines