I've had the MBL additive in my gearbox, transfer, front diff and 2x engines for over 3 years (well, had it in the engines - haven't added any for a few oil changes now...)
I haven't had any negative experiences - so that's got to be good? Whether or not I've obtained enough benefit to justify the expense is another issue.
Their website includes a few "testimonials", including an old TAFE report which isn't hugely convincing. The video looks impressive, but (as noted in another topic here) you can't believe everything you see in a video.
I haven't found any independent reports - for or against.
I'd prefer first hand experiences rather than "expert" opinion - my uncle's partner's ex's father's first wife's son once heard it's crap, but my mate's cousin's work mate's mother's friend's husband swears his love-child's aunt's baker loves it.
Ah, fark it. Let rip!
