Fuel Saver

[fuelsaver13]

Hi,
Being a non-moving turbine shaped device, the Tornado Fuel Saver creates a vortex or swirling effect to the engine of your car, truck or SUV. This swirling effect helps in atomizing the air and fuel mixture in the combustion chamber. You can get more information from www.gainex.co.uk/.

[StianM]

All this products smal snake oil from a long distance.
The gass vaporize good enough only trough the heat and atomization from the nozles/carbs.
The real big fuel advantage was electronic fuel injection because you could have a perfect fuel and ignition setting on eatch RPM and load condition.
Anny devices placed in the airstream will restrict flow and will at best reduce your power.
I have seen devices like this befour and I supose there is a reason they can not refere to anny of the great car makers using them.
Why post this on a boat forum? moust boats run diesels annyway so they could not use it even if it worked.