Skip to content
High-performance oil designed for marine stern drive engines.
Sierra Marine Premium Blend 4-Stroke Marine Stern Drive Engine Oil is specifically formulated to meet the rigorous demands of high horsepower marine engines. This SAE 25W-40 oil provides excellent lubrication and corrosion protection, ensuring optimal performance in harsh marine environments. Designed for stern drive and inboard engines, it outperforms standard automotive engine oils under high load and running stresses.
The oil features advanced detergency, anti-oxidants, and antiwear properties, which contribute to reduced wear on internal components and protection against corrosion. It also promotes cleaner pistons and prevents ring sticking, enhancing engine longevity. With excellent low-temperature operating properties, this oil is suitable for a variety of marine applications.
Sierra Marine products are engineered to meet or exceed the quality performance standards of API SJ, CF-4, and CH-4, making them a reliable choice for marine use. With over 50 years of experience, Sierra Marine is a leading supplier of marine engine and drive parts, ensuring that their products consistently deliver high performance and reliability.
Features
- Formulated To Provide Excellent Lubrication And Corrosion Protection
- Stern Drive And Inboard Engines Operate Under High Load And Running Stresses
- Developed For The Marine Environment And Will Out Perform Standard 4-Cycle Automotive Engine Oils
- Offers Excellent Detergency, Anti-Oxidants, Antiwear, And Corrosion Protection
- Reduced Wear To The Internal Components
- Protection Of Internal Parts From Corrosion
- Cleaner Pistons And Prevention Of Ring Sticking
- Excellent Low Temperature Operating Properties
- Meets Or Exceeds Quality Performance API SJ, CF-4, And CH-4
Specifications
- Manufacturer: Sierra Marine
- Manufacturer Part Number: 18-9400-4
- Use: Marine Use
- Engine Type: 4 Stroke
- Viscosity Grade: SAE 25W-40
- Type: Conventional
- Unit Size: 1.25 Gallon
- Unit Quantity: Single
- Universality: Semi-Universal
- Unit Type: Jug
Technical Documents
Shipping & Returns
- This product ships within the continental USA only.
- This product typically ships within 1 to 3 business days.
This item is NOT returnable. For complete details, please see our return policy.
