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.