Our service videos https://pinion.eu/en/service-videos/ explain how to change the oil on the Pinion gearbox yourself. It is important that only original Pinion gear oil is used. This is available from your local dealer or in online shops. In the event of damage (e.g. due to incompatibility of the oil with seals on the gearbox), all guarantee claims against Pinion will be void if any oil other than Pinion gear oil is used.