mga peeps and gurus:

Helo naman..a client of mine is asking me to test his new invention, a gas fuel saving device, which he claims can save a lot of fuel and boosts the power of cars. My problem are as follows:

1. Is there a standard procedure for testing the fuel consumption of cars? I plan to test the gadget using the Before (without the gadget) and After (with the gadget) procedure at two driving scenarios namely; city driving and highway driving.

2. Is there a prescribed distance and speed for testing fuel consumption of cars? how many kilometers should i run the test car and at what average speed?

Hope you can help me....thanks in advance!