Hello old diesel fellows,
This guy in India 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 calculates the difference of the two, for net fuel consumption (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, the only thing missing is to take speed in km/hour and divide by consumption, and get fuel efficiency in km/liter (or miles per gallon). With some programming, the result may be shown in the same digital display.
The programming may be done easily on this unit:
http://www.autospeed.com/cms/A_11154...popularArticle
Donīt know the price.
The programming may be done with the Ezylabtronics shown in autospeed forum:
http://www.autospeed.com/cms/A_11154...popularArticle
Oldbeaver