Comment Re:Overstated or misrepresented? (Score 1) 403
It's not that trivial, actually. Fuel expands and contracts with temperature, and measuring fluid flow accurately is actually pretty damn hard, especially for very small flows. It's easy to estimate within about 5% based on injector duty cycle, fuel rail pressure, and temperature, but even then any kind of nonideality in the injector could radically change the accuracy of the "measurement."