# Better MPG vs. Exhaust Noise

**URL:** <https://community.cartalk.com/t/better-mpg-vs-exhaust-noise/53318>\
**Category:** Maintenance/Repairs\
**Tags:** chrysler\
**Created:** [August 10, 2010, 10:53pm UTC](https://community.cartalk.com/t/better-mpg-vs-exhaust-noise/53318 "2010-08-10T22:53:27Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![ckollars](https://avatars.discourse-cdn.com/v4/letter/c/49beb7/32.png) [@ckollars](https://community.cartalk.com/u/ckollars)\
**Post date:** [August 10, 2010, 10:53pm UTC](https://community.cartalk.com/t/better-mpg-vs-exhaust-noise/53318/1 "2010-08-10T22:53:27Z")

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My 2002 Chrysler PT Cruiser currently has a pinhole exhaust leak. Apparently something (reduced backpressure?) matters quite a lot, as my mileage has improved 25%-35%. (I drive like a granny, but it’s never affected mileage nearly as much as this exhaust leak.) I’d just leave the leak and ignore the putt-putt noise …except of course it wouldn’t pass the state (Mass.) inspection.  
  
  
  
 How can I keep the better mileage while fixing my exhaust?

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