Mazda CX9 2017 Used Automatic Gasoline mileage: 300 KM or more Mazda 6 Full Option. Mileage 350,000 km. The car has been maintained and is in good condition, but the engine consumes oil and the airbags have been deployed. I suspect I was ripped off when I bought it for 31,000 from a dealer, may God not forgive him. The bottom line is, I want 20,000 for it given its condition with oil consumption and deployed airbags, and it is not negotiable.