There are a lot of products on the market claiming improved fuel consumption, some of which have undoubtedly enjoyed a degree of success. But others have failed, so if you are considering a purchase, make sure you get a good money back guarantee.
Owners of vehicles can maximise economy by simple maintenance, servicing and driving style. But of course in the real world mechanical parts and tyres do wear, driving conditions change and our driving style is not always as economical as it could be. Domestic and industrial heating systems are not always serviced as often as they should, and once they are serviced carbon deposits will immediately start to build resulting in a reduction of efficiency.

What does Magnetic Fuel Conditioning do?
Strapping a set of magnets to the fuel line is believed to improve the way the fuel and air mix in the combustion chamber and give a more complete combustion and reduced emissions.   The mechanism is not yet understood, but you can read some of the research on this site http://sound-ideas.info/9.html

What will be the benefit of fitting an Magnetic Fuel Conditioner to a car?
An improved combustion will provide greater power. This power can be used to go further (fuel economy) or to go quicker (better performance). The engine will run cleaner allowing parts such as catalytic convertors, which can be very expensive to replace, to last longer.  As well as saving money on fuel and parts, fitting an magnetic fuel conditioner will help the environment by reducing exhaust pollution.

Benefits claimed by users of the products include not only lower fuel bills but also greater energy availability, reduced sooting of burners and reduced emissions.  Works on light and heavy oil, natural gas and propane.  This is the most cost-effective thing you can do to reduce Global Warming.

It couldn't be simpler. A magnetic fuel conditioner is placed onto the fuel line and held in position by nylon tie-wraps. There are no pipes to cut, no electrical connections to make and the only tool required is some snips or scissors to trim the ends of the ties.

Tests