Sierra 25W-40 4-Stroke Catalyst Marine Oil

Sierra 25W-40 4-Stroke Catalyst Marine Oil

This Sierra Premium Blend Engine Oil meets modern recreational 4-stroke engines with or without emission catalyst systems. Sierra 25W-40 is approved for all 4-stroke applications including outboard, sterndrive, and inboard.

Features:

• Exceeds all 4-stroke requirements including FC-W and FC-W Cat Compatible
• Formulated to offer maximum corrosion protection
• Advanced lubrication for extended engine life and wear protection
• "ZDDP" anti-wear additive technology
• Prevents phosphorus depletion and extends the emission catalyst life
• NMMA FC-W Certified
• Developed for the marine environment and will out perform standard 4-cycle automotive engine oils
• Offers excellent detergency, anti-oxidants, antiwear, and corrosion protection
• Excellent low temperature operating properties

How much oil does my engine need?

It varies model to model, check out our Engine Oil Capacity Guide for more information and capacity charts!

Interchangeable with:

• Mercury Marine: 92-8M0078627

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