AMSOIL Engine Assembly Lube (EAL) is a specialised engine-building lubricant designed to protect critical components during assembly, storage and initial startup. Formulated for new and rebuilt four-stroke engines, it provides a durable lubricating film that clings to metal surfaces, helping prevent wear before normal engine oil pressure is established.

Its high-viscosity base oil, tackifier and concentrated antiwear additives provide long-lasting protection for bearings, camshafts, lifters, rocker arms and other heavily loaded engine components. Unlike conventional grease-based assembly lubricants, AMSOIL Engine Assembly Lube is designed to dissolve in engine oil, helping reduce the risk of blocked oil passages and unwanted deposits.

Protects Critical Components During Initial Startup

The first moments after starting a freshly assembled engine are particularly important. Before the lubrication system establishes normal oil pressure and circulation, critical components rely on the protective film applied during assembly.

AMSOIL Engine Assembly Lube combines strong surface adhesion with a high concentration of antiwear additives to help protect components during this initial period of operation.

• Provides a protective lubricating film before normal engine oil circulation is established.
• Helps protect camshaft lobes, lifters, rocker arms, bearings and other critical components.
• Contains concentrated antiwear additives for additional protection under demanding contact conditions.
• Suitable for standard engine rebuilds, performance engines and motorsport applications.

Clings to Engine Components for Long-Lasting Protection

Engine building does not always happen in a single session. A rebuild may take days, weeks or even months while waiting for machining, replacement parts or final assembly.

Ordinary lubricants can gradually drain away from exposed components during this time. AMSOIL Engine Assembly Lube uses a high-viscosity base oil and specialised tackifier to maintain a tenacious lubricating film on engine parts throughout the assembly process.

• Formulated to remain on lubricated components during extended assembly periods.
• Helps prevent protective lubricant from draining away before initial startup.
• Provides lasting coverage on critical metal surfaces.

Helps Prevent Rust and Corrosion During Assembly

Partially assembled engines can be exposed to atmospheric moisture, particularly when stored in workshops or garages for extended periods. Bare machined surfaces and internal engine components may develop corrosion before the engine has even been started.

AMSOIL Engine Assembly Lube contains rust and corrosion inhibitors that help protect lubricated metal surfaces during periods of inactivity, making it particularly useful for long-term engine-building and restoration projects.

Dissolves in Engine Oil

Some grease-based assembly lubricants may remain in the engine after startup. If they do not disperse properly, they can contribute to deposits or restrictions in small oil passages.

AMSOIL Engine Assembly Lube is formulated to dissolve in engine oil as the engine reaches normal operating conditions, helping maintain clean oil passages and minimise unwanted lubricant deposits.

• Designed to dissolve into engine oil during operation.
• Helps reduce the risk of assembly lubricant restricting oil passages.
• Minimises the potential for unwanted deposits beneath valve covers and inside the oil pan.

Precise Application During Engine Assembly

Supplied in a convenient 4 oz (118 mL) tube, AMSOIL Engine Assembly Lube allows controlled application directly to components during assembly. The tube format helps reduce mess and makes it easier to apply lubricant precisely where protection is required.

Recommended Applications

AMSOIL Engine Assembly Lube is recommended for new and rebuilt four-stroke engines, including standard automotive engines, performance builds and racing applications.

Apply to critical engine components susceptible to wear during initial startup, following the engine manufacturer's assembly procedures. Engine Assembly Lube supplements proper engine assembly and lubrication practices; it does not replace oil-system priming or the use of the correct engine oil.