Mercury – Oil Change Kit, 40/50/60HP EFI FourStroke, 3 Liters | Maintenance | 8M0081916

Overview

The 40–60HP Mercury EFI FourStroke engines are workhorses—fishing, cruising, towing, long idle sessions, you name it. They run cleaner and last longer when the oil is fresh, and this kit makes the whole job straightforward. Three bottles of the right oil, the proper filter, a new drain plug seal, and a drip tray so you’re not wiping up after yourself. If you’ve ever changed oil with the motor tilted up on the trailer and oil trying to find its way everywhere except the pan, having everything in one box feels like a blessing.

Key Features

 • Sized for 40–60HP EFI FourStrokes – The oil, filter, and seal all match these mid-size engines.
 • Mercury 25W-40 Marine Oil – Holds viscosity under heat and long mid-range pulls.
 • Premium Oil Filter – Helps keep internal parts clean and running smooth.
 • Drain Plug Seal – Fresh gasket for a clean, tight, leak-free finish.
 • Plastic Drip Tray – Useful in tighter engine wells where spills love to hide.

Engine & Boat Compatibility

 • 40HP EFI FourStroke
 • 50HP EFI FourStroke
 • 60HP EFI FourStroke
 • EFI 4-stroke outboards

Performance & Practical Benefits

After an oil change, these motors usually settle into a steadier idle and feel more willing when you roll into the throttle. Long days on the water are easier on the engine because the fresh oil keeps its body when things heat up. Cold starts also smooth out since the lubrication is actually doing its job. It’s simple upkeep that pays off every time you hit the key.

Why Buy OEM

OEM oil and filters fit perfectly, seal correctly, and deliver the pressure and flow Mercury intended for these engines. Off-brand filters can cause pressure dips or poor filtration, which is the last thing a mid-size outboard needs. With OEM, you know exactly what you’re putting into the motor.

FAQ

Q1: When should I use this oil change kit?
A: When the oil starts to darken, the idle roughens slightly, or you’ve reached your service hours.

Q2: Do I need to reset anything after the oil change?
A: No—fill it properly, run it briefly, and recheck the level.

Q3: Is this oil safe for saltwater use?
A: Yes—the corrosion inhibitors are built for marine conditions.

Q4: What’s the easiest way to keep cleanup under control?
A: Warm the engine a bit—warm oil drains cleaner and quicker.

Q5: What happens if the oil filter starts clogging?
A: Idle can get uneven, throttle response may lag, and oil pressure could wander.