Currently have a 2005 Malibu LS V6. Looking to change it to secondary car status in about a year or so and probably purchase a 2015 or 2016 limited cruze as a primary car. Anyone owned both Malibu and Cruze? Biggest questions I have are fuel economy and reliability? Hoping for improved fuel economy vs the Malibu and great reliability. Struggle to get less than 32mpg on a trip. How is fuel economy in not so flat places such as PA and MD? Thinking I will use 89 octane and mobil 1 or Castrol 5w-30. Thanks