
5W-30 FC-W Full Synthetic Catalyst Engine Oil, 5 Qt | 18-9558CAT-4
Sierra 18-9558CAT-4 synthetic catalyst engine oil is an ultra-high engine performance oil that utilizes premium base stocks and industry leading additives. It replaces Yamalube, MerCruiser, Indmar, Mobile 1, Ilmor, Indmar, PCM, and Mastercraft.
- Ultra-High engine performance oil that utilizes premium base stocks and industry leading additives
- Meets and/or exceeds FC-W Catalyst and FC-W specifications
- Meets or exceeds API SN category requirements
- Enhanced detergent package to suspend and prevent sludge
- Reduces friction to maintain high performance
- Prevents thermal and oxidation bread down under extreme temperatures
- High shear stability maintains viscosity, prevent excessive thinning in high performance application
- Advanced ZDDP additive technology prevents phosphorus depletion extending catalyst life
- Application: Turbo Inboards
Original: $94.09
-65%$94.09
$32.93Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Sierra 18-9558CAT-4 synthetic catalyst engine oil is an ultra-high engine performance oil that utilizes premium base stocks and industry leading additives. It replaces Yamalube, MerCruiser, Indmar, Mobile 1, Ilmor, Indmar, PCM, and Mastercraft.
- Ultra-High engine performance oil that utilizes premium base stocks and industry leading additives
- Meets and/or exceeds FC-W Catalyst and FC-W specifications
- Meets or exceeds API SN category requirements
- Enhanced detergent package to suspend and prevent sludge
- Reduces friction to maintain high performance
- Prevents thermal and oxidation bread down under extreme temperatures
- High shear stability maintains viscosity, prevent excessive thinning in high performance application
- Advanced ZDDP additive technology prevents phosphorus depletion extending catalyst life
- Application: Turbo Inboards






















