Break-In Oil Additive w/ Zinc Case/12-16oz

Redline Oil Break-In Oil Additive with Zinc is a synthetic engine protection formulation specifically engineered for the critical break-in period of new or freshly rebuilt engines. This 12-pack of 16-ounce bottles supplies the elevated zinc (ZDDP) and anti-wear additives that flat-tappet cam followers and lifters require during initial operation when metal-to-metal contact is highest and protective film formation is most demanding.

High zinc content is non-negotiable for break-in protection. Modern low-zinc motor oils meet EPA emissions standards but lack the anti-wear package older engines and vintage muscle car rebuilds demand. Redline's formulation restores that protection layer, reducing scuffing and wear rates on new valve train components during the first critical hours of engine operation. Each 16-ounce bottle treats a full crankcase, making the 12-bottle case ideal for shops managing multiple engine builds or for serious enthusiasts who rotate through seasonal projects and want on-hand inventory.

This product is essential for small-block and big-block V8 rebuilds, vintage hot rods, classic truck restorations, and any engine featuring original or OEM-style flat-tappet camshafts. It's equally critical for marine engine break-ins and high-performance racing builds where new cam and lifter sets have zero pre-existing protective film. The case quantity minimizes reordering and ensures stock availability for professional machine shops, restoration facilities, and dedicated gearheads managing multiple builds throughout the season.