For normal to mildly modified Mini's,
Millers Classic Mini Oil
http://www.millersoi...sector=Classics
or Penrite Classic Mini Oil
http://www.penrite-o...lassic-mini-oil
For higher spec engines and racing
Millers CTV (what I run)
http://www.millersoi...ctor=Motorsport
Purely Racing Oil
Swiftune Racing Mini oil (not suitable for road use).
http://www.swiftune....0-race-oil.aspx
All these oils are 20W50 and are specifically designed for the combined engine and gearbox combination that the mini has. They are to my knowledge the only oils designed for the Mini which also protects the gearbox to GL4 levels.
Some more info from Millers on their range of oils designed specifically for the Mini.
http://www.millersoi..._motorcycle.pdf
Edited by Orange-Phantom, 26 July 2016 - 08:59 PM.