- Preferred break-in oil of Fleece Performance Engineering and Freedom Racing Engines.
- Quickly seats piston rings.
- Increased zinc and phosphorus protect against wear.
- Maximizes compression and power.
Product Overview
Friction-modifier-free formula helps rings seat properly for maximum compression and reduced blow-by. Excellent film strength and proprietary anti-wear additive package help ensure cams and bearings are protected during break-in. Delivers competition-quality engine preparation.
QUICKLY SEATS RINGS
- Friction-modifier-free formula allows sharp peaks on newly honed cylinder walls to partially flatten, creating more surface area for rings to seat
- Forms a dynamic seal that increases compression, horsepower and torque.
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.
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Product information checked: September 2026. Product formulations, specifications, applications, availability and published claims can change.
For the latest official information, consult the AMSOIL Corproate Website.
