Everything around here says it’s 10% ethanol. Stupid Midwest corn belt. Works fine 125k miles in. Probably hurts my mileage but given my mileage is so bad I’m measuring it in pounds of fuel like a cruise ship I hardly notice.
My 2013 says don’t use E15 but if it did I’d just do the math and figure out what the cost savings would need to be to make it worth buying.