MerCruiser engines equipped with Emissions Control have specific oil requirements. Some marine-grade oils on the market contain high levels of phosphorus. Long-term exposure to these oils will damage catalytic converters--which may not be covered by the Mercury MerCruiser Limited Warranty.
MerCruiser Full Synthetic Engine Oil:
• Contains low levels of phosphorus, reducing potential damage to the catalyst
• Can be used on any MerCruiser engine equipped with or without Emissions Control
• Keeps dirt and deposits from settling on metal surfaces
• Reduces oil consumption, compared to conventional oils
• Resists thermal breakdown and oxidation
• Provides exceptional rust protection
• Meets Mercury MerCruiser warranty requirements
• Exceeds all oil requirements and FC-W (Catalyst Compatible) marine applications for all sterndrive/inboard engine manufacturers