# Octane!

**URL:** <https://boards.straightdope.com/t/octane/285693>\
**Category:** In My Humble Opinion\
**Created:** [January 20, 2005, 7:33am UTC](https://boards.straightdope.com/t/octane/285693 "2005-01-20T07:33:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Blown\_Injected](https://avatars.discourse-cdn.com/v4/letter/b/a87d85/32.png) [@Blown\_Injected](https://boards.straightdope.com/u/Blown_Injected)\
**Post date:** [January 20, 2005, 7:33am UTC](https://boards.straightdope.com/t/octane/285693/1 "2005-01-20T07:33:29Z")

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IMHO Samclem closed this thread too fast!

> **[Octane](https://boards.straightdope.com/sdmb/showthread.php?t=297836)**
>
> I would like to increase the 96-98 octane unleaded fuel to 100-105 octane. Does anyone has quick ideas how to do this.

**ramesh sodum**  
Since you did not get a direct answer to your direct question that does indeed have a factual answer:  
Start with the best pump gas you can get. Sunoco 94 is common in my area. Add xylene and or toluene to the gasoline. About three gallons added to seven gallons of gasoline will get you ten gallons of 100 octane. Should add a dash of lube to the mix. Maybe an ounce per gallon of solvent - do not remember since Sunoco sells GT-100 at a few select stations near me, I do not mix my own for some time now.

Be sure to read the article Q.E.D. found for you.

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**Author:** ![ramesh\_sodum](https://avatars.discourse-cdn.com/v4/letter/r/67e7ee/32.png) [@ramesh\_sodum](https://boards.straightdope.com/u/ramesh_sodum)\
**Post date:** [January 20, 2005, 7:41am UTC](https://boards.straightdope.com/t/octane/285693/2 "2005-01-20T07:41:35Z")

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> [@Blown & Injected](#):
>
> IMHO Samclem closed this thread too fast!  
> [http://boards.straightdope.com/sdmb/showthread.php?t=297836](http://boards.straightdope.com/sdmb/showthread.php?t=297836)
> 
> **ramesh sodum**  
> Since you did not get a direct answer to your direct question that does indeed have a factual answer:  
> Start with the best pump gas you can get. Sunoco 94 is common in my area. Add xylene and or toluene to the gasoline. About three gallons added to seven gallons of gasoline will get you ten gallons of 100 octane. Should add a dash of lube to the mix. Maybe an ounce per gallon of solvent - do not remember since Sunoco sells GT-100 at a few select stations near me, I do not mix my own for some time now.
> 
> Be sure to read the article Q.E.D. found for you.

Thank you will try.

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**Author:** ![Czarcasm](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/czarcasm/32/4050_2.png) [@Czarcasm](https://boards.straightdope.com/u/Czarcasm)\
**Post date:** [January 20, 2005, 7:47am UTC](https://boards.straightdope.com/t/octane/285693/3 "2005-01-20T07:47:04Z")

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**Samclem** closed that thread for a good reason, and there was _no_ reason for you to reopen the topic(in the wrong forum to boot.)