Hello old diesel fellows,
There is guy in India who sells a complete system consisting of two diesel fuel flow meters (one for supply and one for return fuel) and a LCD digital display that shows a several consumption values, including the difference between the two if I am not wrong. Fuel consumption in liters/hour.
Fuel Consumption Meter - Diesel Generator Fuel Consumption Meter, Automobile Fuel Consumption Meter, Vehicle Fuel Consumption Meter and Fuel Consumption Calculator Manufacturer & Exporter from Mehsana, India
To calculate accurate fuel efficiency (mpg or km/liter), the only thing missing is to take the speed signal existing in our cars (or generate it if not), which is in miles/hour or km/hour, and divide by consumption.
The system looks robust. It should allow to get fuel efficiency in km/liter (or miles per gallon) with very little programming. Maybe it can be done using the elabtronics kits:
AutoSpeed - eLabtronics EZ System, Part 1
The result should be shown in the very same display of the indian system.
Someone will take this project? It looks very attractive and possible.
Oldbeaver
Last minute: I got the price: USD 650. Too expensive I think.