The Red Line Oil Manual Transmission Service Kit - 465944 is a comprehensive kit designed for servicing manual transmissions in cars. It includes a variety of products to help maintain and improve the performance of a car's manual transmission. The kit includes a transmission fluid, a gear oil, a friction modifier, and a synthetic gear oil. These products work together to provide superior protection and lubrication for the transmission, reducing wear and tear and extending its lifespan. The kit is suitable for use in a wide range of manual transmissions and is a convenient and cost-effective solution for keeping a car's transmission running smoothly.