# Gas question, 100LL

**URL:** <https://forums.speedlife.net/t/gas-question-100ll/159995>\
**Category:** NYSpeed Automotive\
**Created:** [September 5, 2010, 9:47am UTC](https://forums.speedlife.net/t/gas-question-100ll/159995 "2010-09-05T09:47:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![weaves](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/weaves/32/5624_2.png) [@weaves](https://forums.speedlife.net/u/weaves)\
**Post date:** [September 5, 2010, 9:47am UTC](https://forums.speedlife.net/t/gas-question-100ll/159995/1 "2010-09-05T09:47:57Z")

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100LL mixed with normal gasoline 50/50

Can I run that in my daily truck without my cats or o2 messing up?

Its free and I’m not sure if i should do one tank full or not…

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**Author:** ![Freek](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/freek/32/7357_2.png) [@Freek](https://forums.speedlife.net/u/Freek)\
**Post date:** [September 5, 2010, 10:03am UTC](https://forums.speedlife.net/t/gas-question-100ll/159995/2 "2010-09-05T10:03:52Z")

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More info is required.

What year truck?  
Why do you need to mix the two?  
what’s the reason behind this?

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<div class="post-metadata">

**Author:** ![weaves](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/weaves/32/5624_2.png) [@weaves](https://forums.speedlife.net/u/weaves)\
**Post date:** [September 5, 2010, 10:09am UTC](https://forums.speedlife.net/t/gas-question-100ll/159995/3 "2010-09-05T10:09:53Z")

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2009 Ranger

I’m not mixing, its already like that.

My work, new fuel truck, need fuel out for straight 100LL.