AMSOIL V-Twin Synthetic Primary Fluid is purpose-built for bikers whoprefer a dedicated primary chaincase lubricant. Its balanced formula-tion delivers consistent clutch feel for confident starts, helping ridersavoid killing the engine. It also protects components against wear tohelp riders get the most out of their bikes. V-Twin Synthetic Primary Fluidis Warranty Secure™ and will not void your motorcycle’s warranty. It is acost-effective, high-performance alternative to original equipment man-ufacturer (OEM) fluids.