Is there a google map type service for calculating gas usage?
Google does not currently have this feature. I think offering something like this would be more complicated than we think. Yes, I’m sure Google knows speed limits and has a statistics database of traffic conditions. But there’s also the issue of uphill/downhill, and perhaps some other road factors that we can’t think of at the moment. Google would also have to work in the hundreds and hundreds of the most popular vehicles into an MPG database, since different vehicles have largely varying MPGs. (E.g., I think Hummers get ~10 MPG, while Priuses can get around ~50 MPG.) Different people also drive differently – some like to floor the gas pedal once the light turns green, only to slam on the brakes at the red light shortly ahead; others, like me, barely accelerate if they see the red light ahead (which, by the way, saves you both gas and brakes). In short, even if Google comes up with a service like this, its accuracy, and thus its usefulness, would probably be very limited. With this in
