Join Date: Sep 2004
Location: Silver City, New Mexico
the break in oils that are made today are intended for the older engines with flat tappet camshafts. the zinc forms a shock buffer coating on the lobes. it is also very good at ruining cats and emmision systems of a modern car.
89 Wrangler, 2.5L TBI, D30 Truetrac 4.56 gear front, Super 35 4.56 gears rear, 31" BFG Mud's, 15x9" weld racing pro-stars XP's, 2.5" rancho and 1.25" shackels, superior axles. rear wilwood disc brakes
2008 wrangler x unlimited. Stone white. Motech 5.3L LS Chevy