4 Quarts of Honda GN4 10W-40 4-Stroke Motorcylce Oil | Honda set the standard for motorcycle oil when it introduced GN4 in 1975 | They selected the highest-quality base stocks, and created an additive package specifically designed for the unique requirements of motorcycle engines | Constant testing and development has given today's GN4 even better shear resistance, viscosity stability and cleanliness to meet the requirements and stresses of a new era of engine technology | **Kit includes One Genuine Honda OEM Oil Filter and One Crush Washer, and one bottle of Genuine Honda Shaft Drive Fluid