Fuelmaster - Diesel fuel additive

[reddog]

Would be interested in feedback if anybody has any experience with this diesel fuel additive.
Its Australian made and seems reasonably priced ($55/Lit inc GST) given the very low dose rates (1:4,000) recommended.

http://www.fuelmaster.net.au/?gclid=CJuh7uyz_7ACFeiUpgodeCzKQw

Thanks reddog