Hello and Thanks for the Welcome .
well Right the driver lost since January 14 Kilos , but his weigth is today 15% from the Car , thats a little bit too much
About HHO we will see the facts if i install it and drive some weeks . our experience is different , Older Cars with lower efficiency runs better and with higher mileage . newer Cars have often Problems with it , the Motormanagement in stock cant work with it . so can the cars losing Fuel mileage .
but there are more complicated Ideas to solve.
The Standard Ways i must drive are much uphill downhill real much braking , there is a idea to build a mild hybrid from the car with a 3 or 4 kw electric motor that can recuperate break energy and at the other side help the machine to accelerate or drive some Miles only with Electric Power . i think itīs possible with low budget and some workpower .