AWD v6 here. With CEL on for P0135/P0136/P0171/P0174 codes, I've been measuring my mileage and gas gallons to see how my MPG is affected. I have been getting 16MPG on mostly highway trips and 13.8 with shorter city trips. Still trying to decide if the bad MPG is happening because of the freezing weather or bad a/f and oxygen sensors!what is fuel mileage for a 3.3v6