Experience peak performance and durability with Lucas SAE 20W-50 Engine Break-In Oil, now available in a convenient 5-litre bottle at Precision Regrinds. Designed for quicker, more efficient ring seals and enhanced engine protection, this oil features higher levels of zinc and phosphorus to ensure maximum protection. It's a must-use for flat tappet camshaft break-in, offering less blow-by for more power and better ring seal. No moly supplements or additional additives are required, and it's compatible with methanol and high-octane race fuel. Ideal for initial break-in of both flat tappet and other reconditioned engines, trust Precision Regrinds and Lucas Oil to keep your engine running at its best.