zMAX 15W50 Break-In Racing Oil is a high-performance mineral-based oil specifically formulated for breaking in new or rebuilt race engines. Its unique additive package ensures proper seating of piston rings, optimal component wear-in, and reliable protection during the critical initial hours of operation.
 
Ideal for a variety of race vehicles, this break-in oil sets the foundation for long-term engine performance and allows for a smooth transition to synthetic racing oils once the break-in period is complete.
 
📦 Sold by the case — 12 x 1-quart bottles
 
Key Features:
 
Mineral-based break-in oil for new or rebuilt engines
Supports proper piston ring seating and component wear-in
Provides reliable protection during the critical break-in period
Prepares engines for high-performance synthetic racing oils
Ideal for short-track, circle-track, and other race engines