MERCURY 25W-40 4-Stroke Outboard Oil Change Kit — 40/50/60hp EFI, 3L Oil & OEM Filter

The MERCURY 8M0081916 kit provides all parts and 3 liters of 25W-40 marine oil needed to complete an oil change on Mercury 40/50/60hp EFI FourStroke outboards.

Keep your Mercury FourStroke outboard running smoothly with a purpose-built service kit that includes oil, filter, drain plug seal, a drip tray and clear instructions. The components are matched to Mercury specifications so you get correct capacity, filtration and sealing without hunting for separate parts. This kit simplifies maintenance whether you service at the dock or in your garage.

What comes in the kit and why does each part matter?

The kit includes three liters of MERCURY SAE 25W-40 4-Stroke Marine Engine Oil, a Mercury-branded oil filter, a replacement drain plug seal, a plastic drip tray and step-by-step instructions. Each item is chosen to protect wetted engine parts, trap contaminants and prevent leaks during refill.

• 3 L of 25W-40 oil formulated for marine FourStroke engines
• OEM Mercury oil filter sized for 40/50/60hp EFI models
• Replacement drain plug seal to ensure a tight, leak-free fit
• Plastic drip tray for cleaner, easier fluid capture and disposal

How does MERCURY 25W-40 oil protect a FourStroke outboard?

MERCURY 25W-40 marine oil uses targeted anti-wear chemistry to guard critical surfaces such as cam lobes and bearings. Independent tests show the formula retains proper viscosity under marine stresses, helping the engine maintain reliable operation over time.

• Advanced anti-wear additives reduce component wear during operation
• Stable viscosity helps the oil perform across temperature ranges
• Formulation resists breakdown under typical boating conditions

How easy is it to perform the oil change with this kit?

The kit is designed to make a routine oil change straightforward: drain the old oil, replace the seal and filter, refill with the supplied oil and follow the included instructions. The drip tray cuts cleanup time, and pre-matched parts eliminate compatibility guessing.

• Step-by-step instructions included for common maintenance steps
• Drain plug seal and correct filter reduce repeat trips to the parts store
• Drip tray captures used oil for proper disposal

When should I change my outboard oil and filter?

Follow the maintenance intervals recommended in your engine’s owner manual; many owners perform oil and filter changes annually or after specified run hours. Regular changes help remove contaminants and keep moving parts protected, reducing the risk of premature service issues.

• Check the owner manual for hour- or time-based intervals
• Annual service is commonly recommended for infrequently used engines
• Use fresh oil and a new OEM filter to maintain warranty and performance

Who is this for: The MERCURY 8M0081916 oil change kit is made for owners of Mercury 40, 50 and 60hp EFI FourStroke outboards who want a single, OEM-matched package to perform routine oil and filter service. It suits DIYers who prefer a tidy, complete kit and professional technicians who need the correct parts and quantities on hand for fast, reliable maintenance.