Sierra 118-9420CAT-2 Catalyst 10W-30 Marine Engine Oil - 1 Quart

Sierra Catalyst 10W-30 Marine Engine Oil is a premium multi-viscosity lubricant specifically formulated for marine gasoline engines. This high-performance oil provides superior protection against wear, corrosion, and oxidation in demanding marine environments.

Key Features:

• 10W-30 viscosity grade for reliable performance across a wide temperature range
• Marine-specific formulation designed to handle moisture and salt exposure
• Advanced additives protect against rust, corrosion, and deposit buildup
• Helps maintain engine cleanliness and optimal performance
• Compatible with most gasoline marine engines
• Convenient 1-quart bottle for easy oil changes and top-offs

Regular oil changes with quality marine oil like Sierra Catalyst help extend engine life and ensure reliable operation on the water. Suitable for inboard, sterndrive, and four-stroke outboard applications.