Sierra Quart 10W-30 Premium Blend Catalyst Engine Oil | 18-9420CAT-2

• Quart 10W-30 Premium Blend Catalyst Engine Oil
• NMMA FC-W Catalyst compatible oil has been specifically designed to meet the unique requirements of modern 4-stroke recreational engines with or without emission catalyst systems
• Approved for all 4-stroke applications including outboard, stern drive and inboard and exceeds all 4-stroke requirements including FC-W and FC-W Cat compatible
• Provides superior corrosion protection under extreme conditions
• Industry leading wear protection and deposit control
• Capitalizing on ZDDP anti-wear additive technology to prevent phosphorus depletion and extend emission catalyst life
• NMMA FC-W certified