It produces an alternating current and then converted into a direct current so that it can be better utilized by the car.
For example, you may need to replace your alternator or a battery, or getting new brake pads.
For about $ 50 to $ 200, the cost for converting your car to support the water fuel technology is appropriate.
If you know your book value or better yet have a publication with the values and seller laughs then you have something to reference as well.
If after buying a new car or preowned, something goes wrong, you have recourse.
Buyers should know the specific entity that will provide the required services.