Go Back  i-Club > Regional Forums > Bay Area
How many miles can you go on a tank of E85? >

How many miles can you go on a tank of E85?

Notices

How many miles can you go on a tank of E85?

Old 06-16-2011, 12:20 AM
  #1  
Registered User
Thread Starter
iTrader: (3)
 
Four vs Two's Avatar
 
Join Date: Mar 2010
Location: SF
Posts: 494
Car Info: 335i & S1000RR
How many miles can you go on a tank of E85?

I know there are a lotta guys running E85 and I was wondering how many miles you can typically drive before filling up again?
Four vs Two is offline  
Old 06-16-2011, 12:32 AM
  #2  
iClub Silver Vendor
iTrader: (12)
 
EQ Tuning's Avatar
 
Join Date: Mar 2003
Location: 631 Railroad Ave. Fairfield, CA
Posts: 8,228
Car Info: A Laptop
About 200-225 in an STI. A bit more if you really stay out of boost... But that's no fun

-- Ed
EQ Tuning is offline  
Old 06-16-2011, 12:35 AM
  #3  
Registered User
iTrader: (11)
 
subie OCD's Avatar
 
Join Date: Aug 2005
Location: Concord
Posts: 5,808
Car Info: 04 STi
What if you romp on it a lot? 140ish?
subie OCD is offline  
Old 06-16-2011, 12:37 AM
  #4  
VIP Member
iTrader: (17)
 
VRT MBasile's Avatar
 
Join Date: May 2005
Location: Sunnyvale, CA
Posts: 22,776
Car Info: '13 BRZ Limited / '02 WRX
So I was wondering something.

Flexfuel cars, if I'm understanding them correctly, automatically switch back and forth between engine mapping depending on the gas in the tank.

Is there any reason you can't do a 91octane map for an E85 built car? This thought came to me in regards to long road trips where E85 might not be available every 225 miles.
VRT MBasile is offline  
Old 06-16-2011, 12:52 AM
  #5  
Registered User
 
Join Date: Sep 2010
Location: Sonoma County
Posts: 972
Car Info: 2004 WW Evo RS
The flexfuel cars have a sensor that reads that fuel!
SeaOfGreen is offline  
Old 06-16-2011, 01:04 AM
  #6  
VIP Member
iTrader: (17)
 
VRT MBasile's Avatar
 
Join Date: May 2005
Location: Sunnyvale, CA
Posts: 22,776
Car Info: '13 BRZ Limited / '02 WRX
Originally Posted by SeaOfGreen View Post
The flexfuel cars have a sensor that reads that fuel!
Yeah, so they do automatically what we could do with the AP. I mean I have 91oct and 100oct maps, I'm just wondering if there's a difference between 91oct to E85, or if it us fundamentally the same as 91/100.
VRT MBasile is offline  
Old 06-16-2011, 06:34 AM
  #7  
Churro Aficionado
iTrader: (38)
 
stupidchicken03's Avatar
 
Join Date: Feb 2008
Location: IG - @thomas.teammoist
Posts: 54,294
Car Info: IG - @TEAMMOISTOFFICIAL
Originally Posted by VRT MBasile View Post
So I was wondering something.

Flexfuel cars, if I'm understanding them correctly, automatically switch back and forth between engine mapping depending on the gas in the tank.

Is there any reason you can't do a 91octane map for an E85 built car? This thought came to me in regards to long road trips where E85 might not be available every 225 miles.
Ive kinda wondered the same thing.

From talking with ppl, we've guessed that if you have an AP, you can have both a 91 and E85 tune.

Run down your tank as much as you can, then fill with the next fuel.

Not sure if that would work great, but it seems like that E85 would just be a slight octain booster when you fill with 91?
stupidchicken03 is offline  
Old 06-16-2011, 06:52 AM
  #8  
Registered User
iTrader: (10)
 
CaliSuby's Avatar
 
Join Date: Sep 2008
Location: Watson,Kalifas!
Posts: 4,064
Car Info: Un Carrito Que Hace Vrooom Phsss!
So can you run both? Only reason I haven't gone e85 is for that reason, that here in Santa cruz we dnt have it. If I'd be able to switch back and toward would be nice...
CaliSuby is offline  
Old 06-16-2011, 07:35 AM
  #9  
Registered User
iTrader: (23)
 
LOL_VTEC's Avatar
 
Join Date: Apr 2009
Location: Bay Area 925
Posts: 5,433
Car Info: 2018 Tacoma TRD PRO
Originally Posted by CaliSuby View Post
So can you run both? Only reason I haven't gone e85 is for that reason, that here in Santa cruz we dnt have it. If I'd be able to switch back and toward would be nice...
I dont think switching back and forth is a good idea. When you use you 91 map and have 91 w/ some E85 in the tank it's fine. But when you want to use the e85 map and fill it up with e85 for racing you'll have a crap mixture with 91 in it.

I think shops like FF tell there evo costumers to run around a week or 2 with a limp e85 map to get some pure, clean e85 in the system with little trace of 91. Then come in for a full tune w/ better results.
LOL_VTEC is offline  
Old 06-16-2011, 07:39 AM
  #10  
Registered User
iTrader: (1)
 
ARWilliams's Avatar
 
Join Date: Nov 2008
Location: Lafayette CA
Posts: 293
Car Info: Ver8 Bugeye
I drive Grizzly Peak everyday so I get pretty crapy milage
ARWilliams is offline  
Old 06-16-2011, 08:25 AM
  #11  
Registered User
iTrader: (6)
 
xtremeyolks's Avatar
 
Join Date: Nov 2005
Location: Fremont, CA
Posts: 832
Car Info: 06 STI
My last trip from Fremont to Roseville with some city driving and lots of pulls to test my new ewg mufflers I got 16.3 mpg. LOL. This is with 285 width tires too though so it's a lot of drag
xtremeyolks is offline  
Old 06-16-2011, 08:51 AM
  #12  
Registered User
iTrader: (3)
 
kbeetz's Avatar
 
Join Date: Aug 2009
Location: Danville
Posts: 571
Car Info: 2006 WRX
Originally Posted by LOL VTEC View Post
I dont think switching back and forth is a good idea. When you use you 91 map and have 91 w/ some E85 in the tank it's fine. But when you want to use the e85 map and fill it up with e85 for racing you'll have a crap mixture with 91 in it.

I think shops like FF tell there evo costumers to run around a week or 2 with a limp e85 map to get some pure, clean e85 in the system with little trace of 91. Then come in for a full tune w/ better results.


Thats exactly what FF had my friend do when he made the switch in his evo. I would think switching back in forth is bad because your e85 wouldnt be pure. I heard that different stations have different mixtures of e85 and even using a different station can make your car run a little different so I would assume that if there was still a small amount 91 oct in the tank it would be bad
kbeetz is offline  
Old 06-16-2011, 08:54 AM
  #13  
Registered User
iTrader: (5)
 
Join Date: Apr 2007
Location: NineTwoFive
Posts: 483
Car Info: 03 Evo 8
I get about 175-180 mile out of a tank and thats mostly highway too!
BayAreaSTi23 is offline  
Old 06-16-2011, 09:06 AM
  #14  
Former Sponsor
iTrader: (10)
 
LICmotorsports's Avatar
 
Join Date: Feb 2004
Location: 865 A Sweetser Ave.Novato, CA (new shop smell too)
Posts: 3,426
Car Info: MY04 STi some call it a race car
most only avg about 10mpg (if you do mainly freeway miles and try to get good mileage). If you're using the car (track purposes), you can count on 6-8mpg avg. Sure some get more and some get less...just depends on the person

our race car gets 2.5mpg

*E85 is not economical in the mileage dept for our vehicles, albeit general use or racing. Some use the excuse that its cheap, its really not when you do the mpg math. it will always use 2x the amount of fuel and up to 3x. At $3+ per gallon its the cost of some racing fuels....doesnt make a whole lot of sense, other than to make power and get the fuel at a nearby gas station (if applicable)

-Noah

Last edited by LICmotorsports; 06-16-2011 at 02:10 PM.
LICmotorsports is offline  
Old 06-16-2011, 09:10 AM
  #15  
Registered User
iTrader: (3)
 
XxSti05xX's Avatar
 
Join Date: Nov 2007
Location: San Jose, CA
Posts: 2,633
Car Info: 2015 Ford F-150 XLT FX4 Sports Package,SOLD-05 STi
I'll average about 180-200 miles per tank.
Roughly 14mpg's. Mostly bc I can't stay out of boost
I'd say more than half the miles are city driving which also equals to poor milage.

Last edited by XxSti05xX; 06-16-2011 at 10:03 AM.
XxSti05xX is offline  

Thread Tools
Search this Thread
Quick Reply: How many miles can you go on a tank of E85?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

All times are GMT -7. The time now is 10:32 AM.


© 2019 MH Sub I, LLC dba Internet Brands