Penrite 10 Tenths Race Castor Oil 20W-40 (Full Synthetic)

Description

Penrite 10 Tenths Race Castor Oil 20W-40 is a full synthetic engine oil formulated with castor vegetable esters and advanced anti-wear additives for maximum protection in high-stress racing environments. Designed for classic, vintage, and high-performance engines, it provides superior film strength and tenacious protection where conventional synthetics may fail.

The formula resists thinning at high RPMs and extreme heat, making it ideal for air-cooled and competition engines. Its natural affinity for metal surfaces offers outstanding lubrication and corrosion protection—even after shutdown.

Key Features:

• Full synthetic base with castor ester for high-load racing applications

• Exceptional high-temperature stability

• Superior load-carrying and anti-wear protection

• Excellent film strength and lubrication retention

• Provides rust and corrosion resistance even during downtime

• Suitable for wet clutch systems (JASO MA Compliant)

• Classic castor smell and visible smoke under race conditions

Applications:

• Classic 4-stroke motorcycles and racing engines

• Historic racing, drag racing, dirt track, speedway, and flat track

• Suitable for air-cooled or high RPM competition engines

• Ideal for vintage bikes where castor oil was originally specified

• Compatible with methanol, ethanol, avgas, and racing fuels

Not recommended for vehicles with catalytic converters.

Additional information