AMSOIL Break-In Oil is an SAE 30 viscosity grade oil formulated without friction modifiers to allow for quick and efficient piston ring seating in new and rebuilt high-performance and racing engines. It contains zinc and phosphorus anti-wear additives to protect cam lobes, lifters and rockers during the critical break-in period when wear rates are highest, while its increased film strength protects rod and main bearings from damage. AMSOIL Break-In Oil is designed to increase compression, horsepower and torque for maximum engine performance.

Performance Features

• Quickly seats rings
• Allows the sharp peaks on newly honed cylinder walls to partially flatten
• Produces more surface area for rings to seat against
• Allows formation of a dynamic seal that increases compression, horsepower and torque
• Protects critical parts from wear
• High levels of zinc and phosphorus (ZDDP) additives
• Provides the anti-wear protection required during this critical period
• Provides increased film strength to protect bearings from wear

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. 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 meas...

AMSOIL Break-In Oil is an SAE 30 viscosity grade oil formulated without friction modifiers to allow for quick and efficient piston ring seating in new and rebuilt high-performance and racing engines. It contains zinc and phosphorus anti-wear additives to protect cam lobes, lifters and rockers during the critical break-in period when wear rates are highest, while its increased film strength protects rod and main bearings from damage. AMSOIL Break-In Oil is designed to increase compression, horsepower and torque for maximum engine performance.

Performance Features

• Quickly seats rings
• Allows the sharp peaks on newly honed cylinder walls to partially flatten
• Produces more surface area for rings to seat against
• Allows formation of a dynamic seal that increases compression, horsepower and torque
• Protects critical parts from wear
• High levels of zinc and phosphorus (ZDDP) additives
• Provides the anti-wear protection required during this critical period
• Provides increased film strength to protect bearings from wear

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. 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. Afterwards, drain and fill the engine with AMSOIL high-performance synthetic oil that meets builder or manufacturer specifications.

Applications

Designed to effectively break in high-performance and racing engines requiring SAE 30 oil, helping maximize compression, horsepower and torque.