2018 Mustang 5.0 and 10 speed auto: 16 city / 25 hwy / 19 comb
https://www.autoblog.com/2017/10/03/...usauto00000016
That's a slight improvement over the previous 2017 non-direct injected 6 speed auto: 15 city / 24 hwy / 18 comb
I assumed it would be closer to, or be able to exceed the Camaro V8 auto: 17 city / 27 hwy / 20 comb