The 2011 Chevrolet Malibu fuel-economy ratings are not likely to change from 2010 levels. That suggests the ratings will again be unexceptional compared to the four- and six-cylinder competition. Blame Malibu’s relatively high weight.
  With the four-speed automatic, four-cylinder Malibus should again achieve an EPA fuel-economy rating of a 22/30 mpg (city/highway). Mileage improves with the six-speed automatic to 22/33. (The Malibu Hybrid teamed a gas four-cylinder engine with an electric-motor assist for a rating of 26/34 mpg.)
   Equipped with the V-6, the 2011 Chevy Malibu ought to repeat at 17/26 mpg, a rating slightly below that of most six-cylinder rivals.