30 Days

Driven Racing BR40 10W-40 Break in Oil with Zinc - 1 QuartDriven Racing BR40 Break In Conventional Motor Oil - 1 QuartBuilding a new motor? Then protect your investment by using the best break-in oil on the market. The same high Zinc and Phosphorus formula as Driven's original break-in oil, now in an SAE 10W-40 viscosity for modern OEM rebuilds and hydraulic lifter engines. Provides excellent ring sealing. Does not require additional ZDDP additives. Good for full power pulls on the dyno, one night of racing or up to 400 miles on the street. Viscosity typical of 10W-40.