AMSOIL Break In Oil SAE30 1Qt for Newly Rebuilt Engine Run In

Amsoil SA 30 Break In Engine Oil 1QT / 946ml

AS-BRK-QT

What is break-in oil?
**Quickly seats piston rings
**Increased zinc and phosphorus protect against wear
**Maximizes compression and power
**Increased Film Strength
**Protects Critical Parts from Wear

Break-in oil is specifically formulated to seal the piston rings against the cylinder wall for maximum engine compression and power. Break-in oils use conventional base oils without friction-modifier additives to allow controlled wear between the rings and cylinder wall.

They also contain zinc and phosphorus additives to protect the camshaft and other components during break in.

How is break-in oil different from regular oil?
Break-in oil is different from regular motor oil because, by design, it is supposed to allow the rings to wear down the peaks on the cylinder wall to form a good seal. Regular motor oil, in contrast, is designed to prevent wear.  

When do I use break-in oil?
New cars and trucks don’t need break-in oil. The manufacturer will typically require you to drive under light-to-moderate load for a few hundred miles, then change oil. After that, you’re good to go.

Racers, competitors or gearheads using a rebuilt or new crate engine, however, should use break-in oil. Follow the engine builder’s directions or the instructions that came with the crate engine.

How long to run break-in oil?
In general, run the engine under light-to-moderate loads for about 800Km. Again, that duration is a rule of thumb, but break in shouldn’t exceed 1,600Km