Source: Consumer Reports
quote: I thought the official MPG displayed on the sticker is determined by EPA (Environmental Protection Agency) testing.
quote: AFAIK Ecoboost works by bypassing the turbo when in eco mode so it is generally just a naturally aspirated i4 doing the work until you step on it, right?
quote: There's no magic to the Eco-boost system other than marketing with a cool buzz word.
quote: No, the EPA doesn't actually do any testing except for rare instances. What they do is come up with the procedure for testing, that all manufacturers are supposed to follow. The automaker then test the car to the EPA procedure and then submits the results to the EPA.
quote: What's the point of having the manufacturers claim fuel usage figures? As if they're not going to lie to make their cars appear more fuel efficient.
quote: but this is how society *should* work.