Fuel saver or complete waste of £9.99?

[spurtle]

I like the list of vehicles the seller claims it will work on though:

The Fuel Saver can be fitted to all cars, scooters, motorcycles, autorickshaws, buses, ambulances, trucks, earthmoving equipment, generators, locomotives/trains. With larger capacity engines such as large truck and bus engines, we recommend that you consult your local dealer, as more than one Fuel Saver is often used with such large engines so as to optimize both efficiency and fuel savings.

I've put an order in for one for my ambulance ... LOL

[S4TAN]

Question for Dr-Al; these magnets are obviously a con - and in addition to just not working, can they in fact do any damage, or impair performance in some way?

[simple1]

Good way of collecting any scrap metal in the fuel system....... thats about your lot.......Over to Dr Al.