ATS General Discussion Forum
i have a 14 ats with the turbo four cylinder and recently ive been having a problem. my car used to get 25-30mpg but now it gets about the same mileage as a tahoe. i run 91 octane and DON'T WANT TO CONVERT TO E85 because it's not avaliable in my area, had spark plugs and coils done 2k miles ago...