Driven Racing BR-30 Oil has the same formula as original BR in a SAE 10W-30 viscosity. Petroleum oil provides the highest levels of zinc and phosphorus for flat-tappet engines. Additive package promotes ring seal and provides maximum protection available for cams and lifters during initial break-in. Diven Racing BR-30 requires no additional additives. Good for tight clearance and/or low temperature break-in. Compatible with methanol and high-octane race fuels.