Porsche Now you can give your car the motor oil it deserves - the best! Voll-Synthese SAE 5W-40W is a fully synthetic anti-friction motor oil that provides superior lubrication even under extreme conditions thanks to its broad spectrum viscosity and is highly suited for long oil change intervals. Voll-Synthese Motor Oil reduces the frictional resistance and lets the engine run easier. The result is lower fuel and oil consumption.