Why all the talk when Honda has a synthetic out that is rated for wet clutches???
Pro-Honda HP4 10W40
With years of testing and development behind it, Pro-Honda HP4 stands as the definition of excellence for 4-stroke motorcycle oils. HP4 blends the heat-stability and shear-resistance of synthetic oil with the lubricity of mineral oil to get the best of both worlds.
Part # 08C35-A14W0M: 1 Qt.