HomeAll RepliesRe: 2013 Chevy Equinox 2.4 AWD Highway gas mileage Re: 2013 Chevy Equinox 2.4 AWD Highway gas mileage Sponsored February 21, 2013 at 2:24 pm #41102 Alex LuftKeymaster When I had the Equinox tester in 2011, I average 28 combined — mostly highway driving. Remember the Instantaneous Fuel Economy read out usually being 30-31 MPG. This was at sea level (Florida). Sponsored Subscribe to GM Authority For around-the-clock GM news coverage We'll send you one email per day with the latest GM news. It's totally free. First Name Last Name Email Address Subscribe via Email Leave this field empty if you're human: Sponsored