Topic Sponsor
General F150 Discussion General Ford F150 truck discussions and questions
Sponsored by:
Sponsored by:

E85 or regular Unleaded gas?

Old 08-11-2013, 03:44 PM
Limp Member
iTrader: (1)
panthercity's Avatar
Join Date: Oct 2011
Location: Willow Park, TX
Posts: 2,008
Received 40 Likes on 29 Posts

Mixing E85 and real gas shouldn't be a problem since it is a 'flex-fuel' vehicle.
panthercity is offline  
Old 08-11-2013, 08:16 PM
Senior Member
trailblazen's Avatar
Join Date: Aug 2013
Location: Colorado
Posts: 104
Received 9 Likes on 8 Posts

Owners manual is your best friend Jody (read mine cover to cover when I bought my 09 since it was a night and day truck from the 05 I replaced from an accident) but as said above if its a FFV then you are ok and if you want to fill up with unleaded you are fine as well. It even highly recommends using unleaded every 3k miles if primarily using E85. So! if you want to fill up/top off with unleaded and start running it then go forth and be happy. Enjoy your new truck!

Last edited by trailblazen; 08-11-2013 at 08:18 PM.
trailblazen is offline  
Old 08-11-2013, 09:21 PM
Junior Member
Join Date: Jul 2013
Posts: 13
Likes: 0
Received 2 Likes on 2 Posts

I run e-85 in my supercharged civic. E-85 has the octane equivalent of 105 so therefore it resists pre-detonation much better allowing more timing advance and burns cooler.

For flex fuel vehicles they have a meter that measure and regulates ECM peramters accordingly. If e-85 was 30%+ cheaper than pump gas it would be strictly all I would use. Since current prices in my area for 85 are 3.59 and e-85 is 2.99 then I see no need for it since it's not cost effective.

At the end of the day, unless you are purely using e-85 for performance reasons and you have a specific fuel/timing tune for it, your f-150 doesn't need it imo.
ColoradoTuxedo is offline  
Old 08-27-2015, 01:12 AM
Junior Member
Join Date: Aug 2015
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Default E85 experience

I finally tried E85 in my 2006 FlexFuel 5.4L F150. I noticed a definite increase in performance. Anybody else ?
Ranger_10X is offline  

Thread Tools
Search this Thread
Quick Reply: E85 or regular Unleaded gas?

Contact Us - 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 and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: