Shell Advance 4T Ultra with R.C.E Technology is a unique, fully synthetic lubricant designed to provide Shell's ultimate engine protection and performance for all kinds of modern bikes. The latest generation of motorcycle engines require premium synthetic oils to maintain the highest standards of protection and performance, whatever the engine size. Shell Advance's R.C.E.* Technology helps your bike perform to its peak potential, making it responsive to your slightest touch. *R.C.E. Technology is designed to deliver: 1. Increased oil performance Reliability by helping to remove deposits and maintain oil viscosity to give superior engine protection. 2. Enhanced Control by smoothing clutch engagement and preventing slippage. 3. Enjoyable ride by reducing vibration and damping engine noise. The technology has been race proven and endorsed by leading motorcycle manufacturers. The product exceeds the requirements of all motorcycle manufacturers.