E46 M3 Expertise Required

[Ash007]

Hey Guys

I need your help, i want to change fluids in my car so need to know whats the best.

Gearbox: s6s 420G getrag manual- no sticker on box, i want to use some sort of synchromesh for the notchy shifts
Clutch Fluid: need to bleed and refresh fluids
Brake Fluid: Changing front disks and pads to powerbrake system so thought i will have those done all at once.

Any help will be great, thanks

 

[STREETRACER]

our boxes need Castrol BOT130 oil but royalpurple syncromax is king!
your clutch and brake fluid is the same reservoir so you can either go buy expensive fluid or the midas brand which also stops my car and engages my clutch perfectly each time!

 

[Ash007]

Thanks streetracer, i hear only good things about GM Synchromesh but not sure if it can work in our boxes, does royal purple synchromax come in different variants or is there only one?