Not sure about the Jetta, but the diesel Cruze is so much more efficient than the gasoline version that diesel has to be 1.5x the price of gas for the latter to

Not sure about the Jetta, but the diesel Cruze is so much more efficient than the gasoline version that diesel has to be 1.5x the price of gas for the latter to make sense. EPA cycles tend to underestimate the fuel economy of diesel TDIs and overestimate those of gasoline TDIs. They're pretty accurate for non-turbo gasoline DI engines though.