Products are required to support are: Lot 1 - Oils, Lubricants and Greases Lot 2 - Coolants, Antifreeze, Screenwash and AdBlue Many of the products within scope are engineering-critical items which may be subject to OEM approval, ROSCO acceptance, materials compatibility requirements and/or GWR technical approval. Alternative or substitute products must not be supplied without the prior approval of GWR where engineering approval is required. – Lot nr.: 1 Oils, Lubricants and Greases Supply of approved oils, lubricants and greases required for the maintenance, servicing and overhaul of GWR rolling stock and associated engineering equipment. Products must meet applicable GWR technical and engineering requirements and be supplied with relevant Safety Data Sheets (SDS), COSHH information and supporting product documentation. Duration contract start date : 01/12/2026 12:00:00 AM Duration contract end date : 30/11/2027 11:59:59 PM Criteria definitions: Quality: 40 (Technical) Price: 50 (Commercial) Quality: 10 (Contract) – Lot nr.: 2 Coolants, Antifreeze, Screenwash and AdBlue Supply of approved coolants, antifreeze, screenwash and AdBlue required to support the operation, servicing and maintenance of GWR rolling stock and associated engineering activities. Products must meet applicable GWR technical, safety and environmental requirements and be supplied with relevant Safety Data Sheets (SDS), COSHH information and supporting product documentation. Duration contract start date : 01/12/2026 12:00:00 AM Duration contract end date : 30/11/2027 11:59:59 PM Criteria definitions: Quality: 40 (Technical) Price: 50 (Commercial) Quality: 10 (Contract)