Cat® Extreme Application Grease #1 is a premium calcium sulfonate complex grease, engineered for long-lasting performance in demanding Cat applications. Infused with 5% molybdenum disulfide (moly), it delivers exceptional durability and extended service life. It’s advanced formulation resists washout from both fresh and salt water, ensuring reliable protection in wet and corrosive environments. Even under extreme loads and high-speed conditions, this grease maintains it integrity - reducing component wear and safeguarding critical parts. With superior corrosion resistance, it protects metal surfaces from oxidation and rust without compromising steel, copper bearing alloys, or conventional seal materials.