Break-In Oil (SAE 30)

Competition-Quality Engine Preparation

Rings sit perfectly thanks to a friction-modifier-free recipe for maximum compression and less blow-by. Cams and bearings are protected during break-in due to the superior film strength and special anti-wear additive package. delivers engine preparation of a competitive standard.

Quickly seats piston rings
Increased zinc and phosphorus protect against wear
Maximizes compression and power

QUICKLY SEATS RINGS

The primary goal during engine break-in is to seat the rings against the cylinder wall. Properly seated rings increase compression, resulting in maximum horsepower; they reduce oil consumption and prevent hot combustion gases from entering the crankcase. To achieve this, however, the oil must allow the correct level of “controlled wear” to occur between the cylinder wall/ring interface while maintaining wear protection on other critical engine parts.

Insufficient break-in leaves behind peaks on the cylinder wall that prevent the rings from seating. The deeper valleys, meanwhile, allow excess oil to collect and burn during combustion, increasing oil consumption. Too much wear results in cylinder glazing due to peaks “rolling over” into the valleys and preventing oil from collecting and adequately lubricating the cylinder wall.

PROTECTS CRITICAL PARTS FROM WEAR

Contains high levels of zinc and phosphorus (ZDDP) additives.

Delivers excellent protection for splash-lubricated parts, like camshafts and lifters, during break-in.

Increased film strength protects rod and main bearings from wear.

Technical Information

APPLICATIONS
AMSOIL Break-In Oil is designed to effectively break in highperformance and racing engines requiring SAE 30 oil, helping
maximize compression, horsepower and torque.

RECOMMENDATIONS

The engine builder’s or manufacturer’s break-in recommendations should be followed if available. Break-in period should not exceed 1,000 miles (1,600 km). When the engine is new, the exhaust ports will have a large area of oil residue. As the rings begin to seat, less oil is passed and the oil residue area begins to shrink. When the rings are fully seated and have formed a tight seal against the cylinder walls, no oil residue will be evident. Other common methods to determine if rings have seated include performing a leak-down test or horsepower measurements over time. Break-in duration will vary between engines. Afterward, drain and fill the engine with an AMSOIL high-performance synthetic oil that meets builder or manufacturer specifications.

Warranty Information

HEALTH AND SAFETY

HEALTH & SAFETY

HEALTH & SAFETY
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 www.amsoil.ca 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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