Single quart bottle of Castrol Go! 4T 10w-40 oil for use in automatic Minis. The APII auto gearbox requires a very specific oil with an additive package suitable for wet clutch applications. Use of improper oil can cause a myriad of issues, most notably slow shifting or sluggish performance. This oil is all we use in all auto gearbox cars.
 
Meets JASO MA specification.