West Marine is your best source for the engine oil you need.

Online and in our stores you will find a complete selection of conventional, synthetic and synthetic blend marine engine oils for your boat. Popular brands include Chevron, Quicksilver, Evin-Johnson, Mercury Marine, Shell, Sierra, Yamaha and yours truly—West Marine. The selection can be divided into two types of oil: four-stroke oil and two-cycle (TC-W3) outboard oils. All are “virgin” oils that are not manufactured from recycled oil. Among the four-stroke oils, available viscosities include SAE 10W-30, 15W-4020W-40, 25W-40, 30W and 40W oils which are offered in Quart, Gallon, 2.5 Gallon, 5 Gallon and 55 Gallon sizes. The selection of two-cycle oils includes formulations for virtually every type of two-cycle marine engine, from TC-W3 oil for small outboards up to sophisticated blends for high-performance, DFI outboard motors.

Types of Engine Oils Available:

• 4-Stroke Engine Oils: Designed for engines that operate on a four-stroke cycle, these oils provide superior lubrication and protection against wear and corrosion. Options include synthetic blends and full synthetic oils, such as the Quicksilver 25W-40 Synthetic Marine Engine Oil.

• 2-Cycle Engine Oils: Ideal for engines that use a two-stroke cycle, these oils ensure proper combustion and prevent carbon buildup. Products like the Quicksilver TC-W3 2 Stroke Conventional Marine Engine Oil are available.

Key Features to Consider:

• Viscosity Ratings: Selecting the correct viscosity is essential for engine efficiency. West Marine offers oils in various grades, such as 10W-30, 10W-40, and 25W-50, to suit different operating conditions.

• Additive Packages: Many oils come with additives that enhance performance, including detergents to keep engines clean and anti-wear agents to protect critical components.

• Brand Options: West Marine provides oils from reputable brands like Quicksilver, Yamalube, and their own West Marine line, ensuring quality and reliability.

Maintenance Tips:

• Regular Oil Changes: Adhere to the manufacturer's recommended oil change intervals to maintain engine health.

• Proper Disposal: Dispose of used oil responsibly by taking it to designated recycling centers or marine service facilities.

• Monitor Oil Levels: Regularly check oil levels and top up as needed to prevent engine damage.