Viscosity controlled in relation to temperature: it’s additives thicken the oil at high temperatures and give it fluidity at low temperatures.

Piston ring sealing, power gains: the oil reduces piston ring groove fouling for optimum sealing during combustion. This ensures that the engine retains its full power.

Oxidation resistance: Elf Moto4 Roadstar 10W-40 has anti-oxidant additives which neutralise and slow down the oxidation process.

Anti-clutch slippage, disk protection: because of their molecular structure, the base oils are able to form a homogenous film between the clutch disks. The friction factor is adapted to mechanical requirements, preventing clutch slippage and premature disk wear.