Read one site that said it
Read one site that said it will run fine on regular, had a 2016 Kia Sorento , and it was regular with turbo. Now have a 17 Outback, and will probably upgrade to the Ascent, but want to see, and drive it first. So far the Outback with the boxer 4 does well for me, with 29 mpg in city, even dealer was impressed.