Pre-Lube Engine Oiler Tool

The Pre-Lube Engine Oiler Tool by Melling (MPL-201) is an essential piece of equipment for engine builders, mechanics, and automotive enthusiasts performing new builds, rebuilds, or major overhauls. This specialized tool eliminates the risk of catastrophic bearing and cam damage that occurs when an engine starts with insufficient oil pressure—a critical window lasting mere seconds before the lubrication system pressurizes. It is particularly beneficial for high-performance street engines, vintage restorations, and daily driver rebuilds.

This tool operates by pressurizing clean motor oil directly into the engine's oil galleries through the main oil supply line before startup, delivering controlled flow to all critical bearing surfaces, cam lobes, valve lifters, and rocker arms. The design accommodates various oil viscosities and is compatible with both traditional mineral and synthetic oils, allowing you to match your engine's specific break-in protocol. Its robust construction ensures reliable performance across repeated use without degradation.

Professional engine builders and seasoned mechanics trust the Melling pre-lube system to reduce wear during the critical break-in period. While it is designed for small block and big block engines, users should verify compatibility with their specific engine type. This tool is a one-time investment that pays dividends on every engine project you undertake.