MERCURY 8M0078629 Synthetic Oil 4-STROKE 25W-40

( Part Type: Oil ), ( Manufacturer Part Number: 8M0078629 )

Review MERCURY 4-stroke Synthetic Oil 25w-40 Quart fits MARINE

Mercury 8M0078629 Marine 4-Stroke Synthetic Oil is a premium grade lubricant specifically designed for use in Mercury and Mariner outboard motors. This 25W-40 oil is formulated with advanced synthetic technology to provide superior protection and performance in various operating conditions.

The synthetic base oil used in this Mercury oil ensures a consistent flow rate in both extreme hot and cold temperatures. It also offers enhanced resistance to oxidation and thermal breakdown, which results in a longer oil life and improved engine efficiency.

This 4-stroke synthetic oil is engineered to meet or exceed the requirements of the most demanding outboard applications. It provides excellent wear protection for critical engine components, such as piston rings, cylinder walls, and crankshaft bearings. It also ensures a clean engine by preventing the formation of sludge and carbon deposits.

The Mercury 8M0078629 Marine 4-Stroke Synthetic Oil is compatible with both aluminum and cast iron cylinder blocks and meets the requirements of the most recent outboard motor technologies. It is also recommended for use in Mercury Verado, Mercury FourStroke, Mariner, and MerCruiser applications.

Using the correct oil in your Mercury outboard motor is essential for optimal engine performance and longevity. This Mercury 8M0078629 Marine 4-Stroke Synthetic Oil is the ideal choice for boat owners who demand the best from their engines. With its advanced synthetic formula and Mercury-specific formulation, it offers unmatched protection and performance, ensuring your outboard motor runs smoothly and efficiently, season after season.

Mercury 8M0078629 Marine 4-Stroke Synthetic Oil 25w-40: A Comprehensive Analysis

The Mercury 8M0078629 Marine 4-Stroke Synthetic Oil 25w-40 is a popular choice for marine engine owners. In this analysis, we will discuss the key features, advantages, and disadvantages of this oil to help you make an informed decision.

1. Synthetic formulation: This oil is made of synthetic base stocks, which offer superior performance in extreme temperatures and provide better protection against wear and tear.

2. 25w-40 viscosity: The oil's 25w-40 viscosity grade is suitable for various water temperatures and engine applications.

3. Mercury-approved: The Mercury Marine-approved designation ensures compatibility with Mercury outboard engines.

1. Superior engine protection: The synthetic base stocks provide excellent wear protection, reducing the risk of engine damage.

2. Wide operating temperature range: The oil's 25w-40 viscosity allows for efficient engine operation in a wide range of temperatures.

3. Longer oil change intervals: The synthetic oil's enhanced properties enable longer oil change intervals, saving time and money.

1. Higher cost: The synthetic oil's cost is typically higher than conventional oil, which may be a concern for some users.

2. Possible compatibility issues with other brands: Although this oil is Mercury-approved, it may not be compatible with engines from other manufacturers.

The Mercury 8M0078629 Marine 4-Stroke Synthetic Oil 25w-40 offers numerous benefits for marine engine owners, including superior engine protection, a wide operating temperature range, and longer oil change intervals. However, its higher cost may be a disadvantage for some users. Ultimately, if you own a Mercury outboard engine and prioritize engine performance and longevity, this oil is a worthwhile investment.

If you own a Mercury outboard engine and are looking for a high-performance, synthetic oil option, the Mercury 8M0078629 Marine 4-Stroke Synthetic Oil 25w-40 is an excellent choice. It provides superior engine protection, compatibility, and operating temperature range, making it a wise investment for your marine engine.

Details:

Meets or exceeds all Marine engine manufacturers warranty requirements and recommendations for use of an FC-W oil. Maintains viscosity, protects against varnish buildup and sludge formation, exceeds the rust protection requirements for NMMA certification. Outperforms automotive oils in Marine applications because of its specialized additive package designed for engines and the rigors environment. For use in Mercury, Mercuries and other leading brands of four-stroke outboard, stern drive inboard Marine engines.

Provides outstanding wear and corrosion protection to help extend engine life. It maintains its viscosity, protects against varnish buildup and sludge formation exceeds the rust protection requirements for NMMA certification. It is SAE 25W-40 weight oil. Synthetic blend 4-stroke oil 8M0078629 is for use in all outboard, stern drive and inboard Marine engines.

Produced by Mercury Marine to our stringent original equipment manufacturer specifications. This package is a 1 quart bottle. Outperforms automotive oils in Marine applications thanks to its specialized additive package designed for the rigors of environment.

part #: 8m0078629 prices

• $14.00-$119.94

specifications boatbooch:

• for models: Marine
• for makes: Mercury
• part type: Oil
• manufacturer part number: 8M0078629

seller boatbooch:

• city: Clearwater, Florida
• # reviews: 7
• rating: 100.0%

payments boatbooch:

• wallet: Google-pay
• other
• credit card: Mastercard

offer boatbooch:

• availability: In Stock
• sold: 0
• started: September 12, 2025
• options: Ship-to-home

returns boatbooch:

• policy: No Returns

general boatbooch:

• Parts Accessories > Boat Parts > Service Tools
• condition: New

shipping boatbooch:

• type: Calculated
• cost: $12.31
• class: Standard
• transit: 4-10 Days
• carrier: UPS
• service: UPS Ground

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