Description
SIERRA 25W-40 Synthetic Blend Catalyst Marine Oil, 1 qt – 18-9440CAT-2 is formulated for modern recreational four-stroke engines where catalyst compatibility, viscosity stability and marine corrosion protection are required.
The synthetic-blend formulation resists thinning under severe operation while its detergent and anti-wear package helps manage sludge, deposits and component wear.
Key Features
- SAE 25W-40 synthetic-blend formulation
- Catalyst-compatible for modern four-stroke marine engines
- Enhanced viscosity stability under high temperature and load
- Detergent package helps suspend sludge and deposits
- ZDDP anti-wear chemistry with FC-W marine performance
Specifications
- Manufacturer Part Number: 18-9440CAT-2
- Container: 1 US qt / 946 mL
- Viscosity: SAE 25W-40
- Oil Type: Synthetic blend
- Performance: NMMA FC-W / API SL; catalyst compatible
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