I average about 26-27mpg despite A/T tires, a roof basket and a manual transmission. Something doesn't sound right about your economy. In addition to the items others have mentioned have you checked the air filter?
As an aside the best fuel economy I've seen with the above mentioned factors was 29.5 after I filled up with 'real gas' (ie 0% ETOH). IMHO corn has no place in fuel.
As an aside the best fuel economy I've seen with the above mentioned factors was 29.5 after I filled up with 'real gas' (ie 0% ETOH). IMHO corn has no place in fuel.