Genuine FG Modellsport car spares this part is a Filter Oil And Cleaner (Set)Rge Fg part number is 6525

K&N Filter preservation kit (detergent; oil) 204ml/559ml 99-5003EU

For over 50 years, K&N® has been an industry-leader in automotive filtration and technology—offering products to increase performance, protection, and longevity in thousands of vehicle applications worldwide.
In addition to performance air filters, K&N® manufactures a variety of other protection and performance products, including air intake systems, oil filters, fuel filters, cabin air filters, and home air filters. Over the course of five decades, K&N® have built a reputation for exceptional quality.