# 91 Ethanol Free vs. 93 Oct. **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [June 6, 2012, 11:39am UTC](https://forums.speedlife.net/t/91-ethanol-free-vs-93-oct/223623 "2012-06-06T11:39:36Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![Superium](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/superium/32/7405_2.png) [@Superium](https://forums.speedlife.net/u/Superium)\ **Post date:** [June 6, 2012, 11:39am UTC](https://forums.speedlife.net/t/91-ethanol-free-vs-93-oct/223623/1 "2012-06-06T11:39:36Z")
Would there be any advantage over the other on a boosted car? Noticed Delta sonic now carries 91 ethanol free and got me thinking. ---
**Author:** ![TrueBlue](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/trueblue/32/7245_2.png) [@TrueBlue](https://forums.speedlife.net/u/TrueBlue)\ **Post date:** [June 6, 2012, 11:54am UTC](https://forums.speedlife.net/t/91-ethanol-free-vs-93-oct/223623/2 "2012-06-06T11:54:50Z")
I wish I had a DS out here. I don’t mind running the ethanol blend in the Evolution or the Special but in the fastback I have to mix in Lucas ethanol neutralizer. It eats up vintage cars’ carbs, and I had to rebuild my Holley because I didn’t neutralize as much as I should have. :mad: ---
**Author:** ![Hass](https://avatars.discourse-cdn.com/v4/letter/h/51bf81/32.png) [@Hass](https://forums.speedlife.net/u/Hass)\ **Post date:** [June 6, 2012, 3:00pm UTC](https://forums.speedlife.net/t/91-ethanol-free-vs-93-oct/223623/3 "2012-06-06T15:00:23Z")
> [@TrueBlue](#): > > It eats up **carbs** Fixed that for you… Some people even switch to Avgas in their 2 cycles to avoid ethanol. The tonawanda reservation (near akron) also sells ethanol free in all grades. ---
**Author:** ![JustinH](https://avatars.discourse-cdn.com/v4/letter/j/9fc29f/32.png) [@JustinH](https://forums.speedlife.net/u/JustinH)\ **Post date:** [June 6, 2012, 3:45pm UTC](https://forums.speedlife.net/t/91-ethanol-free-vs-93-oct/223623/4 "2012-06-06T15:45:50Z")
I’ve only seen the ethanol free gas at delta sonic in Niagara Falls. I think it is targeted towards marine use. ---
**Author:** ![Onyx\_Z32](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/onyx_z32/32/7581_2.png) [@Onyx\_Z32](https://forums.speedlife.net/u/Onyx_Z32)\ **Post date:** [June 6, 2012, 4:06pm UTC](https://forums.speedlife.net/t/91-ethanol-free-vs-93-oct/223623/5 "2012-06-06T16:06:22Z")
I know that over time it ethanol in gas will kill Z injectors (and other older cars) but I haven’t gone out of my way to avoid it. ---
**Author:** ![King](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/king/32/7329_2.png) [@King](https://forums.speedlife.net/u/King)\ **Post date:** [June 6, 2012, 5:07pm UTC](https://forums.speedlife.net/t/91-ethanol-free-vs-93-oct/223623/6 "2012-06-06T17:07:16Z")
> [@JustinH](#): > > I think it is targeted towards marine use. Correct. ---
**Author:** ![Saxon](https://avatars.discourse-cdn.com/v4/letter/s/59ef9b/32.png) [@Saxon](https://forums.speedlife.net/u/Saxon)\ **Post date:** [June 6, 2012, 5:12pm UTC](https://forums.speedlife.net/t/91-ethanol-free-vs-93-oct/223623/7 "2012-06-06T17:12:49Z")
93 will be better, ethanol will lower fuel economy but help combat knock ---
**Author:** ![airhead](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/airhead/32/7471_2.png) [@airhead](https://forums.speedlife.net/u/airhead)\ **Post date:** [June 6, 2012, 7:01pm UTC](https://forums.speedlife.net/t/91-ethanol-free-vs-93-oct/223623/8 "2012-06-06T19:01:31Z")
Noco on Rt 5 in Lackawanna has E-free 91. I just started taking enough home to keep my old Mustang and my mowers running. ---
**Author:** ![95dime](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/95dime/32/7514_2.png) [@95dime](https://forums.speedlife.net/u/95dime)\ **Post date:** [June 6, 2012, 8:59pm UTC](https://forums.speedlife.net/t/91-ethanol-free-vs-93-oct/223623/9 "2012-06-06T20:59:35Z")
ive been running startron additive in my sled. good stuff. i have to run a minimum of 93 due to my modifications or itll burn down. never had an issue even in zero degree temps. [http://mystarbrite.com/startron/](http://mystarbrite.com/startron/) ---
**Author:** ![baseball24](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/baseball24/32/7452_2.png) [@baseball24](https://forums.speedlife.net/u/baseball24)\ **Post date:** [June 7, 2012, 2:10am UTC](https://forums.speedlife.net/t/91-ethanol-free-vs-93-oct/223623/10 "2012-06-07T02:10:02Z")
I run and many others run startron in are jet skis with 93. ---
**Author:** ![llink78](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/llink78/32/8037_2.png) [@llink78](https://forums.speedlife.net/u/llink78)\ **Post date:** [June 7, 2012, 7:33am UTC](https://forums.speedlife.net/t/91-ethanol-free-vs-93-oct/223623/11 "2012-06-07T07:33:04Z")
would this stuff be better to use in my 2 stroke quad and bike? ---
**Author:** ![misteroman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/misteroman/32/7423_2.png) [@misteroman](https://forums.speedlife.net/u/misteroman)\ **Post date:** [June 7, 2012, 10:25pm UTC](https://forums.speedlife.net/t/91-ethanol-free-vs-93-oct/223623/12 "2012-06-07T22:25:43Z")
noco on G.I. has it too