Which Brake Fluid to use?

I'm looking to bleed my brakes and want to know what people are using.

Valvoline synthetic dot 3&4. My brakes work...

Motul RBF600. I use it the wr as an alternative to the insanely expensive Castrol srf I use in my race bikes.

Lasts long / little to no fade / takes a long time to break down even in crazy heat

The motul RBF600 is awesome stuff
I used the cheaper motul 5.1 in mine though, IMO it doesn't go fast enough to need the super high boiling temp stuff

True - but brake fluid is cheap(relatively) and with a single front line you aren't using much. Despite what I've read, as long as you keep the cap on tight you can use a single container of fluid for a few years imo (stored correctly). You're prob right, for these bikes it might not make any difference - I honestly had a quart left over so I used it =]