the in tank ones worked better than the "in fuel lines" one.
end of the day. didn't make much difference to the car, but to the motorbikes... well that's another story.
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I also sell the Ion Booster, the super magnet type and found that this combined with the "broquet" I can run the Harley for 3months with out using any fuel true honest!!!.They don't seem to work as well on petrol car engines and thank you as you have now confirmed this . We have a xmas special on these as well so be quick
