XL Synthetic Oil
Info: amsoil.com
With manufacturer's suggesting longer periods between oil changes, the demands on motor oil have become greater. So Amsoil has reformulated its XL line of synthetic oil to withstand longer service intervals and mileage. The Extended Drain Boost additive allows a longer service life, while alkaline additives help to neutralize acids. The oil is offered in multiple weights and viscosities, so you should have no issue finding the right lube for your ride.