Notices
E85 / Ethanol This section is dedicated to tuning with ethanol.

fuel economy

Old Apr 5, 2009 | 04:52 PM
  #1  
raiceboi697's Avatar
Thread Starter
Evolved Member
iTrader: (42)
 
Joined: Jun 2004
Posts: 1,588
Likes: 2
From: Rochester, NY
fuel economy

i was wondering what kind of fuel economy people are seeing on E85. im gonna make the switch soon and i wanna know what im gonna see for miles per tank as long as i keep my foot out of it. thanks in advance
Reply
Old Apr 5, 2009 | 05:48 PM
  #2  
skiracer's Avatar
Evolved Member
iTrader: (1)
 
Joined: Jul 2004
Posts: 851
Likes: 0
From: Los Angeles
https://www.evolutionm.net/forums/5765459-post33.html

Originally Posted by skiracer
I was really bored and had a full tank of E85 in my car. So, i decided to see how many miles i can go if i baby the car. I drove from West LA to Willow Springs and drove back home and then some trying to maintain 70MPH and staying off boost (my gps says i did 67MPH avg) . The drive to Willow Springs, once you get on the 14N, is a LOT of long uphill highways. So, i was probably boosting anywhere fromn 0-5psi on the long uphill stretches. However, on the way home it was a lot of downhill driving.



I drove until my fuel light came on and drove for 10 about more minutes (245 miles on trip) and i filled up my tank with gas again (12.1 gallons).



According to my fuzzy math

245 miles / 12.1 gallons gas added to tank = 20.24MPG



I probably could've squeezed more MPG if i picked some flatter roads to drive on...and yes i really do need a life
Reply
Old Apr 5, 2009 | 07:12 PM
  #3  
Jim in Tucson's Avatar
Evolved Member
iTrader: (3)
 
Joined: Oct 2006
Posts: 1,480
Likes: 2
From: Tucson, Arizona, USA
I've averaged 13.85 mpg over the past nine months that I've been running exclusively on E85. This all in-town driving - very little freeway and no highway cruzing.

Reply
Old Apr 6, 2009 | 06:52 AM
  #4  
mrfred's Avatar
EvoM Guru
iTrader: (50)
 
Joined: Mar 2006
Posts: 9,675
Likes: 132
From: Tri-Cities, WA // Portland, OR
If I stay off boost, I get just shy of 17 mpg for around town driving. I get about 17.5 mpg highway if I stay off boost.
Reply
Old Apr 6, 2009 | 11:01 AM
  #5  
GST Motorsports's Avatar
Account Disabled
iTrader: (8)
 
Joined: Sep 2007
Posts: 3,366
Likes: 2
From: Hayward
I'm around 17 in mixed driving, 19 on hwy and around 12-14 if I am driving it like I stole it all the time.

I did get 21 once on a full tank on 100% hwy. I was testing out some seriously lean cruise and "do not try this at home" ignition timing.
Reply
Old Apr 6, 2009 | 01:43 PM
  #6  
raiceboi697's Avatar
Thread Starter
Evolved Member
iTrader: (42)
 
Joined: Jun 2004
Posts: 1,588
Likes: 2
From: Rochester, NY
nice, sounds like this is gonna be the way for me then once i slap this AEM in
Reply
Old Apr 6, 2009 | 08:51 PM
  #7  
jid2's Avatar
Evolved Member
iTrader: (62)
 
Joined: Feb 2004
Posts: 3,336
Likes: 6
From: Redmond - Lake Tapps ,WA
I got 17 mpg on my 2nd full tank. That is highway cruising with tuning pulls at every on-ramp. Probably more than 2 dozen pulls in there.
Reply
Old Apr 8, 2009 | 10:21 AM
  #8  
jid2's Avatar
Evolved Member
iTrader: (62)
 
Joined: Feb 2004
Posts: 3,336
Likes: 6
From: Redmond - Lake Tapps ,WA
19 mpg out of the 3rd tank.
Reply
Old Apr 25, 2009 | 07:17 PM
  #9  
Aman's Avatar
Evolving Member
iTrader: (23)
 
Joined: Apr 2008
Posts: 243
Likes: 0
From: longisland ny
162miles out of 11 gallon mostly city driving and some highway.
Reply
Old May 3, 2009 | 05:29 AM
  #10  
dieselmd's Avatar
Evolving Member
iTrader: (20)
 
Joined: Oct 2007
Posts: 330
Likes: 1
From: Summerville, SC
Around 17 mpg in stop go traffic.
Reply
Old May 3, 2009 | 06:45 PM
  #11  
rawburt's Avatar
Evolving Member
iTrader: (16)
 
Joined: Aug 2008
Posts: 259
Likes: 0
From: SE Mi
Only checked twice 16.4 and 16.7
Reply
Old May 3, 2009 | 06:54 PM
  #12  
dan l's Avatar
Account Disabled
iTrader: (3)
 
Joined: Apr 2006
Posts: 1,029
Likes: 0
From: USA
I put E85 back in since its warming up in the north east and I got 21.5mpg last tank. Narrowband front O2 and normal ignition timing in effect. I was even hauling 100 pounds of stuff and did a couple pulls on the highway entrance ramps for good measure.
Reply
Old May 3, 2009 | 06:58 PM
  #13  
GST Motorsports's Avatar
Account Disabled
iTrader: (8)
 
Joined: Sep 2007
Posts: 3,366
Likes: 2
From: Hayward
Originally Posted by dan l
I put E85 back in since its warming up in the north east and I got 21.5mpg last tank. Narrowband front O2 and normal ignition timing in effect. I was even hauling 100 pounds of stuff and did a couple pulls on the highway entrance ramps for good measure.
Was that with some pump left in the tank? I always get way better mileage on that one tank with just a little pump left. The next tank or third tank with 100% E85 the mileage drops.
Reply
Old May 3, 2009 | 07:07 PM
  #14  
dan l's Avatar
Account Disabled
iTrader: (3)
 
Joined: Apr 2006
Posts: 1,029
Likes: 0
From: USA
double post

Last edited by dan l; May 3, 2009 at 07:14 PM.
Reply
Old May 3, 2009 | 07:14 PM
  #15  
dan l's Avatar
Account Disabled
iTrader: (3)
 
Joined: Apr 2006
Posts: 1,029
Likes: 0
From: USA
deleted

Last edited by dan l; May 6, 2009 at 03:19 PM.
Reply

Thread Tools
Search this Thread

All times are GMT -7. The time now is 11:20 PM.