Hi, sorry not to reply sooner - this is the info from Orion:
Black Demon Fuel has been developed especially for high performance RC engines. Produced by a European leader in fuel manufacturing in France, it includes all the benefits of the most modern chemistry and fuel technology.
Each batch of Team Orion Black Demon is analyzed before filling the containers, and then a sample is stored for our reference and to make sure the quality is constant throughout each year. The batch number is written on all containers to allow tracing each batch after it has been sold.
Competition is the best test for fuel, and drivers like Atsushi Hara have won the ROAR 1/10 touring car national with Black Demon fuel. The exact same fuel TQd the 1/8th IFMAR buggy World Championships and is also used world wide by racers and hobby drivers.
Competition Fuel Black Demon 16%: This fuel is the choice for EFRA 1/10 touring car limited to 16% nitro. It can also be used for all other classes if the deal is to have a very good fuel with a great price. Great for all the monster trucks!
Competition Fuel Black Demon 25%: Used by many 1/8 scale buggy drivers, this provides more power for all Monster Truck and Truggies, expect some serious power!
All formulas feature film strength additives, anti-oxidants, igniters, and detergents, plus:
Non-foaming agent to keep foam to a minimum allowing longer and more consistent run sessions
Wetting agent allows lubricant package to flow more evenly into bearings
Factory testing and development by the best nitro racers in the world.
To be honest we've bought a job lot off Mirage as they're not going to continue stocking this fuel - they already have Tornado and I think there would be a conflict of interest.
I'm reliably informed that the fuel is similar formula to Byron.
Like Nicad and NiMh batteries there is a lot of variety of opinions regarding model fuel, and many myths - all I can say is that this fuel is selling very well and everyone seems happy with it, particularly at the price!