yup! get about 50% gain in fuel mileage from a few calculations...still in the testing stage though...used hydrochloric acid (since i got it) i have had it in for a while so i should check and see if i still got electrodes...the clear hose is nice though...i get a lot of condensation type stuff showing in the hose and water droplets as well...so i think it even works as a mild water injection...although that might be pushing it...who knows
