Let's use a thought experiment. If a car was able to get 3 more MPG by forcing the driver to get out and manually hand-crank the car every time it needed to st

Let's use a thought experiment. If a car was able to get 3 more MPG by forcing the driver to get out and manually hand-crank the car every time it needed to start, would you place images of drivers getting out of their car and hand-cranking it prominently in your advertising? Of course not. The same concept applies to turbochargers. "We got 3 MPG better by substantially increasing the pressure in your engine, and this will wear it out more over time" is not something that should appear in marketing.