# Huge City/HWY MPG difference

**URL:** <https://boards.straightdope.com/t/huge-city-hwy-mpg-difference/661078>\
**Category:** Factual Questions\
**Created:** [June 15, 2013, 5:52pm UTC](https://boards.straightdope.com/t/huge-city-hwy-mpg-difference/661078 "2013-06-15T17:52:50Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![pkbites](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pkbites/32/204_2.png) [@pkbites](https://boards.straightdope.com/u/pkbites)\
**Post date:** [June 15, 2013, 5:52pm UTC](https://boards.straightdope.com/t/huge-city-hwy-mpg-difference/661078/1 "2013-06-15T17:52:50Z")

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I was reading the [savage on Wheels](http://media.jrn.com/images/WHEELS15G21.jpg) review of the Chevy Cruze. What jumped out at me was the difference in mileage, City 27, Highway 46.

All but a few vehicles get better mileage highway vs city, but 19 seems like an awfully big jump to me.

Is it because it’s a diesel, or are there other factors here?

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**Author:** ![jz78817](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/jz78817/32/1028_2.png) [@jz78817](https://boards.straightdope.com/u/jz78817)\
**Post date:** [June 15, 2013, 7:59pm UTC](https://boards.straightdope.com/t/huge-city-hwy-mpg-difference/661078/2 "2013-06-15T19:59:20Z")

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gearing, possibly. it could have an incredibly tall 6th gear to keep the engine barely loping over idle at highway speeds. a diesel would probably have the torque to keep from obviously lugging.