# Cool thing I found out about Sunoco and Shell Gas

**URL:** <https://forums.speedlife.net/t/cool-thing-i-found-out-about-sunoco-and-shell-gas/127163>\
**Category:** SON240sx Automotive\
**Created:** [August 13, 2009, 6:16am UTC](https://forums.speedlife.net/t/cool-thing-i-found-out-about-sunoco-and-shell-gas/127163 "2009-08-13T06:16:08Z")\
**Posts on this page:** 1\
**Showing post:** 66

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**Author:** ![87s15lt1](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/87s15lt1/32/5706_2.png) [@87s15lt1](https://forums.speedlife.net/u/87s15lt1)\
**Post date:** [August 20, 2009, 5:42am UTC](https://forums.speedlife.net/t/cool-thing-i-found-out-about-sunoco-and-shell-gas/127163/66 "2009-08-20T05:42:41Z")

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> [@Fs: cheap crap and free stuff](https://forums.speedlife.net/t/fs-cheap-crap-and-free-stuff/23615/5):
>
> wtf, did no one read the chart/link i posted on page one.  
> Gas has more energy then a gas + ethanol mix. No experiments needed. The only thing to decide is if the price is worth the millage saved (for those that don’t need octane rating as a deciding factor)
> 
> The octane rating is a measure of the resistance of gasoline and other fuels to detonation. If u need a higher octane to prevent detonation then this should be ur determining factor for a higher grade.
> 
> “Octane rating does not relate to the energy content of the fuel. It is only a measure of the fuel’s tendency to burn in a controlled manner, rather than exploding in an uncontrolled manner.”

:biggthumpup:

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