# Gas mileage thread

**URL:** <https://forums.speedlife.net/t/gas-mileage-thread/50164>\
**Category:** NYSpeed Automotive\
**Created:** [June 17, 2008, 6:26pm UTC](https://forums.speedlife.net/t/gas-mileage-thread/50164 "2008-06-17T18:26:01Z")\
**Posts on this page:** 1\
**Showing post:** 59

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**Author:** ![Penfold](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/penfold/32/5007_2.png) [@Penfold](https://forums.speedlife.net/u/Penfold)\
**Post date:** [June 18, 2008, 7:41am UTC](https://forums.speedlife.net/t/gas-mileage-thread/50164/59 "2008-06-18T07:41:54Z")

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1991 Beretta GTZ  
170k  
Intake, exhaust, re-geared trans, 18’s are killing the mpg  
27-34mpg average

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