hello,i need your opinion about the problem inside the engine after using hho.After a long time used the hho,my friend said the piston and the valve was rust.This problem make me afraid...please reply and give your opinion...
hello,i need your opinion about the problem inside the engine after using hho.After a long time used the hho,my friend said the piston and the valve was rust.This problem make me afraid...please reply and give your opinion...
ash