Joe Gibbs Racing uses the Driven Engine Break-In Oil to dyno and break-in all engines. This petroleum-based oil supplies the highest levels of zinc and phosphorus to the cam and lifters. This oil requires no additional zinc (ZDDP) additives. Driven Engine Break-In Oils provide the maximum protection available during the critical engine break-in period. This oil is ideal for testing and power pulls on the dyno, one night of racing or up to 400 miles on the street!
The same high zinc and phosphorus formula as the original BR break-in oil, now in a SAE 5W-30 viscosity for tight clearance and/or low temperature break-in. Good for restrictor plate engines, drag race engines, and modern OEM rebuilds. Provides excellent ring sealing. Viscosity typical of 5W-30.