Top 5 MERCURY 25W-40 Synthetic Blend – Motor Oils

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1. Quicksilver


Quicksilver 25W-40 Synthetic Marine Engine Oil, 1 Gallon

Quicksilver #ad - 1 gallon bottle. Manufacturer part number 8M0078623. Offers outstanding strength and viscosity retention. Formulated to protect against corrosion and excessive wear. Designed for use with all 4-stroke marine engines. 25w-40 viscosity.
BrandQuicksilver #ad
ManufacturerQuicksilver #ad
Height11.8 Inches
Length7.5 Inches
Weight7 Pounds
Width5.1 Inches
Part Number8M0078623

2. Mercury Marine


Mpp, 8M0078629, MERCURY Genuine 1 Quart 4-Cycle Oil, Syn

Mercury Marine #ad - Eliminates thermal breakdown under extreme rpm, temperatures and loads. Maintains peak engine performance and reliability. Outperforms automotive oils in marine applications. Provides outstanding wear and corrosion protection which help extend engine life. Exceeds oil requirements and FC-W Catalyst Compatible qualifications for all marine engine manufacturers.
BrandMercury Marine #ad
ManufacturerMercury Marine #ad
Height5 Inches
Length11 Inches
Weight5 Pounds
Width5 Inches
Part Number92-8M0078629

3. Mercury Marine/Mercruiser


MERCURY Genuine 1 Gallon 4-Cycle Oil, 25W40-8M0078628

Mercury Marine/Mercruiser #ad - Field-tested and proven in gas and diesel applications. Provides superior lubrication and protection of internal components from corrosion, wear scuffing and scoring - even in higher temperature engines. Provides warranty protection for Mercury MerCruiser engines. Replaces prior part number 92-858048K01. Multi-viscosity 25w-40 oil formulated to eliminate thermal breakdown no viscosity improvers necessary under extreme temperatures and loads.
BrandMercury Marine/Mercruiser #ad
ManufacturerMercury Marine/Mercruiser #ad
Height14 Inches
Length7 Inches
Weight11 Pounds
Width9 Inches
Part Number92-8M0078628

4. Quicksilver


Quicksilver 25W-50 High Performance Synthetic Marine Engine Oil, 1 Gallon

Quicksilver #ad - Provides outstanding wear and corrosion protection to help extend engine life. See your owner's manual or service manual for specific applications and instructions.

It maintains its viscosity, protects against varnish buildup and sludge formation and exceeds the rust protection requirements for NMMA certification. Produced to meet mercury marine original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive. Quicksilver brand Synthetic Blend SAE 25W50 Meets or exceeds all marine engine manufacturer's warranty requirements and recommendations for use of an FC-W marine engine oil. Recommended for Mercury Verado and other high performance marine engines. Manufacturer part number 8M0053664.
BrandQuicksilver #ad
ManufacturerQuicksilver #ad
Height12.62 Inches
Length15.62 Inches
Weight7 Pounds
Width8 Inches
Part Number8M0053664



Ultra1Plus SAE 25W-40 Premium 4-Stroke Synthetic Blend Marine NMMA FC-W | 2 Gallon 8 Quarts

ULTRA 1PLUS #ad - Offers outstanding strength and viscosity retention. Specially designed to provide excellent protection for outboard marine engines including outstanding wear protection, engine cleanliness, and anti-corrosion. Develop to be used with all 4-stroke marine engines. Suitable for use in applications which require API SM. Formulated to protect against corrosion and excessive wear.
BrandULTRA 1PLUS #ad
ManufacturerUltralub #ad
Part NumberUSB25404TFCWG