AMSOIL Engine Assembly Lube

High-Quality Assembly Lube for Racing, Performance, and Other Four-Stroke Engines
AMSOIL Engine Assembly Lube (EAL) is formulated to cling to engine parts and provide exceptional wear protection while inhibiting rust and corrosion in newly built or rebuilt four-stroke engines. It is designed to dissolve in oil, helping eliminate oil port clogging and deposit formation.

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Engine Assembly Lube For Racing and Performance Engines

Clings Tenaciously to Parts
AMSOIL Engine Assembly Lube is used by professional engine builders. Because building an engine can take from a few days to many months, using an engine assembly lube that clings well to parts for extended periods is critical. It is formulated with a high viscosity base oil and a unique tackifier for long-lasting, tenacious cling.

Exceptional Wear Protection
During initial startup, engines operate momentarily with little or no oil pressure, placing camshaft lobes, lifters, rocker arms, bearings, and other critical parts at high risk of wear and failure. In addition to inhibiting wear by clinging to parts, it contains high levels of antiwear additives for further protection.

Inhibits Rust and Corrosion
An engine can sit in a garage partially assembled for long periods, allowing moisture and oxygen to form rust on exposed metal surfaces. Engine assembly lube contains rust and corrosion inhibitors that protect engine components during inactivity.

Dissolves in Oil
Grease-based assembly lubes can increase the risk of oil port clogging if the grease is not fully consumed at the initial startup, potentially causing engine failure. AMSOIL’s engine assembly lube is designed to dissolve in oil, helping oil ports remain clean, and helping to eliminate deposit formation under the valve covers and in the oil pan.

Easy and Precise Application
AMSOIL Assembly Lube is packaged in convenient 4 oz. tubes, allowing for cleaner, more precise application compared to other products.

AMSOIL Engine Assembly Lube is recommended for any new or rebuilt four-stroke engine, including racing and performance engines, and should be applied to all areas of the engine susceptible to initial startup wear.

  • Tenaciously Clings to Parts
  • High in Anti-Wear Additives
  • Dissolves in Oil
  • Provides Rust & Corrosion Protection
  • Recommended for all Four-Stroke Engines, Including High-Performance and Racing Engines

This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS). An MSDS is available via the Internet at or upon request at (715) 392-7101. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.

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Technical Specifications


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Data Bulletins

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