# EPA vs CAFE MPG

**URL:** <https://forums.speedlife.net/t/epa-vs-cafe-mpg/68152>\
**Category:** NYSpeed Automotive\
**Created:** [May 22, 2009, 8:50am UTC](https://forums.speedlife.net/t/epa-vs-cafe-mpg/68152 "2009-05-22T08:50:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![BigRon](https://avatars.discourse-cdn.com/v4/letter/b/58956e/32.png) [@BigRon](https://forums.speedlife.net/u/BigRon)\
**Post date:** [May 22, 2009, 8:50am UTC](https://forums.speedlife.net/t/epa-vs-cafe-mpg/68152/1 "2009-05-22T08:50:40Z")

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Interesting stuff I didn’t know so I figured I would share:

> CAFE and EPA mileage numbers were initially based on the same formula in 1975. When consumers complained that the number didn’t correspond to real-world gas mileage, the EPA determination formula was changed – twice – yet the CAFE formula wasn’t.

> _a vehicle that scores an EPA combined rating of 29 miles per gallon actually contributes 39 MPG to its manufacturer’s CAFE average. There are 29 car models and 36 truck models that already achieve the new standard, and about a third of the cars and half of the trucks are produced by a domestic automaker_

> **[REPORT: New CAFE standard has 'loopholes big enough to drive an SUV through'...](https://www.autoblog.com/2009/05/22/edmunds-finds-new-cafe-standards-has-loopholes-big-enough-to-dr/)**
>
> There are miles per gallon... and then there are miles per gallon. How do you tell the difference? One is labeled "CAFE mpg" and the other is labeled "EPA mpg." What's the difference? Well, Edmunds is taking pains to illuminate the large discrepancy...

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**Author:** ![klug](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/klug/32/5222_2.png) [@klug](https://forums.speedlife.net/u/klug)\
**Post date:** [May 22, 2009, 9:18am UTC](https://forums.speedlife.net/t/epa-vs-cafe-mpg/68152/2 "2009-05-22T09:18:49Z")

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nice