# Power Stroke Help

**URL:** <https://forums.speedlife.net/t/power-stroke-help/267922>\
**Category:** Shift518 Automotive\
**Created:** [November 6, 2013, 4:43pm UTC](https://forums.speedlife.net/t/power-stroke-help/267922 "2013-11-06T16:43:06Z")\
**Posts on this page:** 1\
**Showing post:** 49

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**Author:** ![PJB](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pjb/32/6389_2.png) [@PJB](https://forums.speedlife.net/u/PJB)\
**Post date:** [November 8, 2013, 1:39pm UTC](https://forums.speedlife.net/t/power-stroke-help/267922/49 "2013-11-08T13:39:40Z")

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> [@OMG \*OFFICIAL\* iPhone Thread](https://forums.speedlife.net/t/omg-official-iphone-thread/52737/451):
>
> the big tires are deff gumming up your MPG… A friend of mine had the 7.3L in his e350 van and he got 20-22 highway

The tune from the factory is different between the f trucks and e vans though. Also different transmission gearing too.

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