With 33 MPG highway, (12) Malibu LTZ offers fuel economy that a comparable Toyota Camry can't match. That means up to 528 highway miles on a single fill-up. A six-speed automatic transmission, standard on all models, helps maximize performance and fuel efficiency. Malibu engines feature Variable Valve Timing (VVT) - a technology that optimizes combustion, enhances low-end torque and helps lower tailpipe emissions. A 252-hp 3.6L engine with dual overhead camshafts and VVT is available on 2LT and LTZ. Fuel economy for this engine is 26 highway and 17 city.(4)

http://www.chevrolet.com/assets/pdf/en/overview/11_Malibu_Catalog_web.pdf