What the heck is e 85 and why does everyone use it? - Mustang Evolution

Go Back   Mustang Evolution > Ford Mustang | Wrenching, Care and General Topics > General Mustang Discussion



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 08-14-2015, 03:30 PM   #1
Registered Member
Regular
 
PatrioticAlex's Avatar
 
Join Date: May 2015
Posts: 162
What the heck is e 85 and why does everyone use it?

Ive been noticing a lot of high powered mustang are using e 85. Why e 85 and not 93 octane? Where do you even buy e 85?


Sent from my SM-G900P using Mustang Evolution mobile app
__________________
Texan Mustang
PatrioticAlex is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-14-2015, 03:43 PM   #2
Registered Member

Regular
 
natestang07's Avatar
 
Join Date: Jun 2014
Location: Soap Lake
Region: Washington
Posts: 5,321
E 85 is equivalent to 100 octane or something silly
natestang07 is offline   Reply With Quote
Old 08-14-2015, 03:53 PM   #3
Registered Member
Regular
 
PatrioticAlex's Avatar
 
Join Date: May 2015
Posts: 162
Quote:
Originally Posted by natestang07 View Post
E 85 is equivalent to 100 octane or something silly
What gas do you use nate?

Sent from my SM-G900P using Mustang Evolution mobile app
__________________
Texan Mustang
PatrioticAlex is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-14-2015, 03:58 PM   #4
Registered Member

Regular
 
natestang07's Avatar
 
Join Date: Jun 2014
Location: Soap Lake
Region: Washington
Posts: 5,321
92
natestang07 is offline   Reply With Quote
Old 08-14-2015, 04:14 PM   #5
Registered Member
Regular
 
alterego's Avatar
 
Join Date: Jul 2015
Location: Muscle Shoals
Region: Alabama
Posts: 129
Can't find e85 here. How is it priced compared to 87?


Sent from my iPhone using Mustang Evolution
alterego is offline   Reply With Quote
Old 08-14-2015, 04:17 PM   #6
Registered Member
Regular
 
PatrioticAlex's Avatar
 
Join Date: May 2015
Posts: 162
Quote:
Originally Posted by alterego View Post
Can't find e85 here. How is it priced compared to 87?


Sent from my iPhone using Mustang Evolution
I head its cheaper but the mpg is a lot worse so basically it will cost more. Im texas gas is cheap, 93 oct is like 2.70 and 2.30 for 87 and going back down

Texas Rider
__________________
Texan Mustang
PatrioticAlex is offline   Reply With Quote
Old 08-14-2015, 04:20 PM   #7
Registered Member
Regular
 
alterego's Avatar
 
Join Date: Jul 2015
Location: Muscle Shoals
Region: Alabama
Posts: 129
I bought e85 down south just because, don't remember the price comparison but it did noticeably burn quicker.


Sent from my iPhone using Mustang Evolution
alterego is offline   Reply With Quote
Old 08-14-2015, 04:20 PM   #8
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,418
E85 is a subsidized fuel so it is a little less expensive than premium pump gasoline.
The performance advantage to using it, is much like using straight alcohol. It has an excellent cooling effect inside of the combustion chambers due to the fact that you are using a considerably larger amount of the E85 to do the same amount of work that would be required if the engine was running on gasoline. This allows you to increase the compression ratio on a Normally Aspirated engine or, to increase the boost on a Forced Induction engine, and run a more aggressive ignition timing curve. With none of the negative effects that you would see if using pump gasoline... With the exception of increased fuel consumption.

It's a neat fuel for certain applications! Although, it would be much more expensive if it weren't being government subsidized.
It's basically a "poor man's" racing fuel. Before E85, aviation fuel was the next best alternative to racing fuel. But it also has a little lead in it.

I live in a place where the nearest E85 pump is more than 60 miles away. It would be impossible to run my Mustang, on E85, on the street, due to the availability.
straybullitt is offline   Reply With Quote
Old 08-14-2015, 04:23 PM   #9
Registered Member
Regular
 
alterego's Avatar
 
Join Date: Jul 2015
Location: Muscle Shoals
Region: Alabama
Posts: 129
I can get leaded 110 race fuel here $7 a gallon. I do add a lil when I'm feeling frisky. Love the way it smells burning. But it would be cool to see e85 here as well.


Sent from my iPhone using Mustang Evolution
alterego is offline   Reply With Quote
Old 08-14-2015, 04:25 PM   #10
Registered Member
Regular
 
alterego's Avatar
 
Join Date: Jul 2015
Location: Muscle Shoals
Region: Alabama
Posts: 129
A short answer to the question. E85 is 85% ethanol 15% gasoline.


Sent from my iPhone using Mustang Evolution
alterego is offline   Reply With Quote
Old 08-14-2015, 04:33 PM   #11
Registered Member
Regular
 
PatrioticAlex's Avatar
 
Join Date: May 2015
Posts: 162
Quote:
Originally Posted by straybullitt View Post
E85 is a subsidized fuel so it is a little less expensive than premium pump gasoline.
The performance advantage to using it, is much like using straight alcohol. It has an excellent cooling effect inside of the combustion chambers due to the fact that you are using a considerably larger amount of the E85 to do the same amount of work that would be required if the engine was running on gasoline. This allows you to increase the compression ratio on a Normally Aspirated engine or, to increase the boost on a Forced Induction engine, and run a more aggressive ignition timing curve. With none of the negative effects that you would see if using pump gasoline... With the exception of increased fuel consumption.

It's a neat fuel for certain applications! Although, it would be much more expensive if it weren't being government subsidized.
It's basically a "poor man's" racing fuel. Before E85, aviation fuel was the next best alternative to racing fuel. But it also has a little lead in it.

I live in a place where the nearest E85 pump is more than 60 miles away. It would be impossible to run my Mustang, on E85, on the street, due to the availability.
Thank you a lot for that well written explanation. Do you think it is worth using e 85 on a daily basis if i have one located nearby? How much does it help anyway?

Texas Rider
__________________
Texan Mustang
PatrioticAlex is offline   Reply With Quote
Old 08-14-2015, 04:34 PM   #12
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,418
Quote:
Originally Posted by alterego View Post
I bought e85 down south just because, don't remember the price comparison but it did noticeably burn quicker.


Sent from my iPhone using Mustang Evolution
You need larger injectors and a tune to safely run E85 in your car, so I wouldn't make a habit of doing that.
straybullitt is offline   Reply With Quote
Old 08-14-2015, 04:37 PM   #13
Registered Member
Regular
 
Rapinator126's Avatar
 
Join Date: Dec 2011
Region: Texas
Posts: 9,260
E85 is 105 octane
And cost ranges from $1.80- $2.00 a gallon for me here.

Sent from my SAMSUNG-SM-G870A using Mustang Evolution mobile app
Rapinator126 is offline   Reply With Quote
Old 08-14-2015, 04:41 PM   #14
Registered Member
Regular
 
PatrioticAlex's Avatar
 
Join Date: May 2015
Posts: 162
Quote:
Originally Posted by straybullitt View Post
You need larger injectors and a tune to safely run E85 in your car, so I wouldn't make a habit of doing that.
Which ones you recommend for e 85? Like 80lb/hr?

Texas Rider
__________________
Texan Mustang
PatrioticAlex is offline   Reply With Quote
Old 08-14-2015, 04:42 PM   #15
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,418
Quote:
Originally Posted by PatrioticAlex View Post
Thank you a lot for that well written explanation. Do you think it is worth using e 85 on a daily basis if i have one located nearby? How much does it help anyway?

Texas Rider
Only if you want to achieve the maximum performance from your engine.
There can be considerable gains even using it in a stock engine, with the right tune. And even bigger gains on a built engine!
It will end up costing you more in fuel because you will be burning much more E85.

It really depends on how aggressively you "daily drive" the car I guess.
straybullitt is offline   Reply With Quote
Old 08-14-2015, 04:45 PM   #16
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,418
Quote:
Originally Posted by PatrioticAlex View Post
Which ones you recommend for e 85? Like 80lb/hr?

Texas Rider
Rapiinator knows more about it than I do but, I think that you need 47# on these engines.
straybullitt is offline   Reply With Quote
Old 08-14-2015, 04:45 PM   #17
Registered Member
Regular
 
hctr154's Avatar
 
Join Date: Jul 2014
Location: Conroe
Region: Texas
Posts: 248
Quote:
Originally Posted by PatrioticAlex View Post
Which ones you recommend for e 85? Like 80lb/hr?

Texas Rider
Ford Racing 47lb injectors are what you need. They are direct fit and pretty easy to swap them out.

You will also need a e85 specific tune as well.

Just realized this is not on 2011-2014 Mustang forum....not sure about the 3 valve engine.





Sent from my SM-T217S using Mustang Evolution mobile app
__________________
2013 GT A6
hctr154 is offline   Reply With Quote
Old 08-14-2015, 04:46 PM   #18
Registered Member
Regular
 
PatrioticAlex's Avatar
 
Join Date: May 2015
Posts: 162
Quote:
Originally Posted by straybullitt View Post
Only if you want to achieve the maximum performance from your engine.
There can be considerable gains even using it in a stock engine, with the right tune. And even bigger gains on a built engine!
It will end up costing you more in fuel because you will be burning much more E85.

It really depends on how aggressively you "daily drive" the car I guess.
Okay. I plan using 93 octane for now.

Texas Rider
__________________
Texan Mustang
PatrioticAlex is offline   Reply With Quote
Old 08-14-2015, 04:48 PM   #19
Registered Member
Regular
 
Rapinator126's Avatar
 
Join Date: Dec 2011
Region: Texas
Posts: 9,260
The Ford racing 80lb injectors are **** on the coyotes.
If you plan on staying NA then the 47lbs will work.
Expect a drop in gas mileage and depending on how aggressive you get with timing will determine what kind of power you will make.

Sent from my SAMSUNG-SM-G870A using Mustang Evolution mobile app
Rapinator126 is offline   Reply With Quote
Old 08-14-2015, 04:52 PM   #20
Registered Member
Regular
 
Rapinator126's Avatar
 
Join Date: Dec 2011
Region: Texas
Posts: 9,260
Pretty sure OP has a coyote though. May be wrong

Sent from my SAMSUNG-SM-G870A using Mustang Evolution mobile app
Rapinator126 is offline   Reply With Quote
Old 08-15-2015, 11:48 AM   #21
Registered Member
Regular
 
dwbrand's Avatar
 
Join Date: May 2015
Location: Bendena
Region: Kansas
Posts: 457
Quote:
Originally Posted by Rapinator126 View Post
Pretty sure OP has a coyote though. May be wrong

Sent from my SAMSUNG-SM-G870A using Mustang Evolution mobile app
He's got an 06 3V... because every time I post a reply to him, it's along the lines of "well on my dad's 06..." haha
__________________
2003 Ford Mustang GT
1995 Ford F150 XLT 4x4
1968 Mercury Cougar
dwbrand is offline   Reply With Quote
Old 08-15-2015, 11:48 AM   #22
Registered Member
Regular
 
Join Date: Jun 2015
Location: san antonio
Region: Texas
Posts: 133
E85

Quote:
Originally Posted by PatrioticAlex View Post
Ive been noticing a lot of high powered mustang are using e 85. Why e 85 and not 93 octane? Where do you even buy e 85?


Sent from my SM-G900P using Mustang Evolution mobile app
I thought it was Ethanol--85% gasoline, 15% Ethanol, which is made from corn, which is more expensive to make and a gallon only takes you about 2/3 of what a gallon of regular gas does. At least this is what I understand the situation to be. I used to see it on the pumps down here all the time. Right now I use 87-91 on my '15 GT with PP. Getting a little over 17.5 MPG city driving although, city for me here also includes quite a bit of freeway driving.
reflections is offline   Reply With Quote
Old 08-15-2015, 11:51 AM   #23
Registered Member
Regular
 
dwbrand's Avatar
 
Join Date: May 2015
Location: Bendena
Region: Kansas
Posts: 457
Quote:
Originally Posted by reflections View Post
I thought it was Ethanol--85% gasoline, 15% Ethanol, which is made from corn, which is more expensive to make and a gallon only takes you about 2/3 of what a gallon of regular gas does. At least this is what I understand the situation to be. I used to see it on the pumps down here all the time. Right now I use 87-91 on my '15 GT with PP. Getting a little over 17.5 MPG city driving although, city for me here also includes quite a bit of freeway driving.
No it's 85% ethanol

Doesn't ethanol supposedly burn cleaner? Years ago (like 2002-03) I wrote a term paper arguing in favor of ethanol and funny how now I'm not so much in favor of it anymore.
__________________
2003 Ford Mustang GT
1995 Ford F150 XLT 4x4
1968 Mercury Cougar
dwbrand is offline   Reply With Quote
Old 08-15-2015, 11:53 AM   #24
Registered Member
Regular
 
Join Date: Jun 2015
Location: san antonio
Region: Texas
Posts: 133
Quote:
Originally Posted by reflections View Post
I thought it was Ethanol--85% gasoline, 15% Ethanol, which is made from corn, which is more expensive to make and a gallon only takes you about 2/3 of what a gallon of regular gas does. At least this is what I understand the situation to be. I used to see it on the pumps down here all the time. Right now I use 87-91 on my '15 GT with PP. Getting a little over 17.5 MPG city driving although, city for me here also includes quite a bit of freeway driving.
Forgot to mention that it may be used more as a winter blend, but as I recall, Ethanol was in all the octane levels due to government meddling.
reflections is offline   Reply With Quote
Old 08-15-2015, 01:17 PM   #25
Registered Member
Regular
 
Fabman's Avatar
 
Join Date: Dec 2010
Location: Pleasanton
Region: California
Posts: 1,173
Quote:
Originally Posted by hctr154 View Post
Ford Racing 47lb injectors are what you need. They are direct fit and pretty easy to swap them out.

You will also need a e85 specific tune as well.

Just realized this is not on 2011-2014 Mustang forum....not sure about the 3 valve engine.

Sent from my SM-T217S using Mustang Evolution mobile app
Built 3 Valve here...
e85 kicks azz, why should I pay 16.00/gal for 106 octane racing fuel when I can get e85 for a couple bucks a gallon and run 20 psi on the street everyday?
Yes, it uses a little more fuel, about 20% more, but at 3 bucks a gallon, who cares? Now I track my car a lot but I also like to do cruises and cars shows so e85 means I can run this monster on the street and then take it to the track and change nothing but the tires. Same pulleys, same tune.

Now it's not available everywhere, and for a true daily it's probably not worth it, but for me, it's awesome.
__________________

Tuned by AED
*694 RWHP/677 RWTQ* 10.22@136mph
Currently Assaulting California's Roadcourses
Fabman is offline   Reply With Quote
Old 08-15-2015, 01:44 PM   #26
Registered Member
Regular
 
Rapinator126's Avatar
 
Join Date: Dec 2011
Region: Texas
Posts: 9,260
I love the stuff also. But I love my c16 more

Sent from my SAMSUNG-SM-G870A using Mustang Evolution mobile app
Rapinator126 is offline   Reply With Quote
Old 08-15-2015, 01:47 PM   #27
Registered Member
Regular
 
Fabman's Avatar
 
Join Date: Dec 2010
Location: Pleasanton
Region: California
Posts: 1,173
Quote:
Originally Posted by Rapinator126 View Post
I love the stuff also. But I love my c16 more

Sent from my SAMSUNG-SM-G870A using Mustang Evolution mobile app
c16 is 16.75/gallon here...I couldn't afford to drive my car.
__________________

Tuned by AED
*694 RWHP/677 RWTQ* 10.22@136mph
Currently Assaulting California's Roadcourses
Fabman is offline   Reply With Quote
Old 08-15-2015, 01:52 PM   #28
Registered Member
Regular
 
Rapinator126's Avatar
 
Join Date: Dec 2011
Region: Texas
Posts: 9,260
Quote:
Originally Posted by Fabman View Post
c16 is 16.75/gallon here...I couldn't afford to drive my car.
Lol me either if it ran off of it all the time.
The car runs off e85 the c16 is just in the dedicated system for the bottle. So 5 gallons max.

I got lucky though. The guy we rent our yard from for our shop. He is friends with the head sales man for VP racing. I get it for $10 a gallon

Sent from my SAMSUNG-SM-G870A using Mustang Evolution mobile app
Rapinator126 is offline   Reply With Quote
Old 08-15-2015, 01:54 PM   #29
Registered Member
Regular
 
Fabman's Avatar
 
Join Date: Dec 2010
Location: Pleasanton
Region: California
Posts: 1,173
3.00/gal vs. 10.00/gal
I'll stay with e85.
__________________

Tuned by AED
*694 RWHP/677 RWTQ* 10.22@136mph
Currently Assaulting California's Roadcourses
Fabman is offline   Reply With Quote
Old 08-15-2015, 01:55 PM   #30
Registered Member
Regular
 
Rapinator126's Avatar
 
Join Date: Dec 2011
Region: Texas
Posts: 9,260
$2.00 a gallon for e85 right now down here. It's usually $1.80 but went up for the summer

The only reason I run c16 is I can run around on 1 tune, vs swapping back and forth, and be safe with the 300 hit.
Sent from my SAMSUNG-SM-G870A using Mustang Evolution mobile app
Rapinator126 is offline   Reply With Quote
Old 08-15-2015, 01:56 PM   #31
Registered Member
Regular
 
Fabman's Avatar
 
Join Date: Dec 2010
Location: Pleasanton
Region: California
Posts: 1,173
And don't forget....it's a sustainable fuel source.

__________________

Tuned by AED
*694 RWHP/677 RWTQ* 10.22@136mph
Currently Assaulting California's Roadcourses
Fabman is offline   Reply With Quote
Old 08-15-2015, 01:59 PM   #32
Registered Member
Regular
 
Fabman's Avatar
 
Join Date: Dec 2010
Location: Pleasanton
Region: California
Posts: 1,173
Quote:
Originally Posted by Rapinator126 View Post
$2.00 a gallon for e85 right now down here. It's usually $1.80 but went up for the summer

The only reason I run c16 is I can run around on 1 tune, vs swapping back and forth, and be safe with the 300 hit.
Sent from my SAMSUNG-SM-G870A using Mustang Evolution mobile app
The only thing I know about nitrous is that it blows a lot of motors up.

20 psi and high compression on the street....e85 works for me.
__________________

Tuned by AED
*694 RWHP/677 RWTQ* 10.22@136mph
Currently Assaulting California's Roadcourses
Fabman is offline   Reply With Quote
Old 08-15-2015, 02:02 PM   #33
Registered Member
Regular
 
Rapinator126's Avatar
 
Join Date: Dec 2011
Region: Texas
Posts: 9,260
Quote:
Originally Posted by Fabman View Post
The only thing I know about nitrous is that it blows a lot of motors up.

20 psi and high compression on the street....e85 works for me.
1 motor so far and 1 set of valves.
Good odds

Your car is set up perfect for track/street

Sent from my SAMSUNG-SM-G870A using Mustang Evolution mobile app
Rapinator126 is offline   Reply With Quote
Old 08-15-2015, 02:05 PM   #34
Registered Member
Regular
 
Fabman's Avatar
 
Join Date: Dec 2010
Location: Pleasanton
Region: California
Posts: 1,173
Quote:
Originally Posted by Rapinator126 View Post
1 motor so far and 1 set of valves.
Good odds

Your car is set up perfect for track/street

Sent from my SAMSUNG-SM-G870A using Mustang Evolution mobile app
Thanks.
I know nitrous makes serious hp.......seen it first hand. Just scares the crap out of me. This motor was not cheap.
__________________

Tuned by AED
*694 RWHP/677 RWTQ* 10.22@136mph
Currently Assaulting California's Roadcourses
Fabman is offline   Reply With Quote
Old 08-15-2015, 02:08 PM   #35
Registered Member
Regular
 
Rapinator126's Avatar
 
Join Date: Dec 2011
Region: Texas
Posts: 9,260
We will see what e85 and high boost does on my old 03 cobra. It goes in for the final tune next week.

It has a 2.3 Whipple and 22psi, 10.1 compression,
Ported heads
Stage 3 blower cams
Longtubes
Then all your other "boltons"

Pic I got last time I was at uncles b4 it went back in the car



Sent from my SAMSUNG-SM-G870A using Mustang Evolution mobile app
Attached Thumbnails
Click image for larger version

Name:	1439665726905.jpg
Views:	98
Size:	126.7 KB
ID:	189395  
Rapinator126 is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > Ford Mustang | Wrenching, Care and General Topics > General Mustang Discussion

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
What Oil and filter does everyone use?? r3ap3r911 2011-2014 Mustang GT 16 09-27-2014 07:33 PM
Why the heck did the factory crush the mid pipe on driver side??? GT 1 2011-2014 V6 Mustang 28 07-13-2014 04:13 PM
WHY WHY WHY??? Krustey Monkey General Mustang Discussion 24 08-08-2012 08:22 AM
how the heck does a turbo work? Zim 1979-1995 Mustang GT 12 03-06-2004 07:34 PM
Why does everyone use AIM? Ken The Bar 13 05-08-2003 10:18 PM

» Like Us On Facebook



07:25 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.