SynGas OBD Fuel Saver is based totally on its connection to the vehicle’s onboard diagnostics system. Once plugged into the OBD2 port, the device begins to gather statistics related to driving habits, gasoline consumption, and engine overall performance. Official Facebook@:- https://www.facebook.com/SynGasOBDFuelSaver/ https://www.facebook.com/SynGasGermany/ https://www.facebook.com/groups/syngasgermany https://www.facebook.com/groups/syngaserfahrungen https://www.facebook.com/groups/syngaschiperfahrungen/ https://www.facebook.com/groups/syngastest/