Originally Posted by Dancianne
Thanks Asur,....so a bunch of factors involved. Never was exactly clear on the term "vacuum", but guessing it's the suction force or negative pressure created by the downward movement of the pistons with each revolution? Would make sense though about the ECO light. If that's the case, the more I'm on the pedal, the lower the vacuum?...and turning my light 'off' ?
If you ever get yourself a Bully Dog tuner, check out the driving coach, it works off all those factors but also gives you a visual and audio feedback of what your doing and how its affecting the consumption of the vehicle.