Description
SIERRA 25W-40 Premium Blend 4-Stroke Marine Oil, 55 gal – 18-9400-7 is formulated for the sustained loads, high operating temperatures and corrosion exposure encountered by marine inboard and sterndrive engines.
The 25W-40 formulation combines detergency, oxidation control, wear protection and corrosion inhibitors and is recommended for applicable MerCruiser, OMC and Volvo Penta four-stroke service.
Key Features
- SAE 25W-40 marine four-stroke formulation
- High-load lubrication for sterndrive and inboard engines
- Detergent package helps keep pistons clean and reduce ring sticking
- Corrosion inhibitors protect internal engine surfaces
- 55-gallon bulk drum for shop or fleet service
Specifications
- Manufacturer Part Number: 18-9400-7
- Container: 55 US gal / 208 L drum
- Viscosity: SAE 25W-40
- Performance: API SJ / CF-4 / CH-4; NMMA FC-W
- Applications: MerCruiser / OMC / Volvo Penta where 25W-40 is specified
Interchange / Cross Reference
- Mercury Marine 92-802841A1

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