sanyo fuel saver

[mangdencio]

gurus, any comment on this sanyo fuel saver? this device is sold here in davao city for 3,5t. point A is a container for kersone going to point B, the device itself. point C is where the hose ends. id like to validate this device here before having one. this pic is taken from a friend's car who swears it really saves fuel and increases engine power. thanks

useless

best fuel saving tips:turn off engine in heavy traffic
roll down windows during cool days or nights
walk on short distance trips
remove excess car luggage