Hydrogen Systems – Fuel Economy Testing?

bodybuilder_in_training questioned:

Ok, my trucking company wants to bed in hydrogen systems(feeding hydrogen to the intake many) on our diesel trucks. They want to bed in them on only 10 vehicles as a test run. What would be the self-determining and disadvantaged factors for this test.

I’m guessing disadvantaged factor is the MPG(Fuel State).
Independents – Driver?(he joystick acceleration and speed), and the hydrogen units themselves?

So how would I use a 4 step hypothesis test to pledge this question(do the hydrogen units boost fuel efficiency and engine emissions, if so by how much).

Also, how may maybe I use a t test to help woth the breakdown?
Adding: This is the JetStar Hydrogen logic made by Dynamic Fuel Systems out of Canada