We accept returns of waste engine oil, in the quantities purchased from us, for professional disposal. Oil filters and other oil-containing wase, which occurs usually with an oil change is also accepted for return. The place of return is

Siebert Luftfahrtbedarf GmbH, Rektoratsweg 40, 48159 Münster, Germany.

Waste oil can be returned during our business hours Mon – Fri 9 am through 5 pm.

Alternatively waste oil can be sent to us by parcel service. Make sure that a suitable packaging is used and that all shipping charges are prepaid. We do not accept any shipping costs for returns. Also check, if the shipping is considered as hazardous material. Alternatively waste oil can be disposed in local municipal recycling centers (applies to Germany only). If you are a commercial end user, we may use third parties to fulfill our obligations.