I just got a 2010 F150 a couple of months ago and it has the flexfuel option. I used the E85 the first month or so until I went on a trip and got about 4 mpg better using the E87 on the way back.

My question is: Is my truck made to use E85 and run better on it or does it not matter which gas I use E85 or E87, so that I could use the gas with better millage?

Where I live the E85 is $1.99 and the E87 is $2.44.

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Posted by Wtodd

Tampa, FL

Member since Oct 2013

67508 posts

Posted on 11/20/14 at 10:26 am to HottyToddy7

I'm pretty sure there's a book you could consult........I think it's called an Owner's Manual.

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Posted by TigerFanatic99

South Bend, Indiana

Member since Jan 2007

27704 posts

Posted on 11/20/14 at 10:27 am to HottyToddy7

If I am not mistaken, most flex vehicles run worse on E85. They just have the option to use it where non-flex vehicles can't use it at all

ETA: worse as in poorer gas mileage. I'm not referring to being worse for the engine or something like that.

This post was edited on 11/20/14 at 10:28 am

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Posted by DWaginHTown

Houston, TX

Member since Jan 2006

9882 posts

Posted on 11/20/14 at 10:45 am to HottyToddy7

I believe it burns cleaner and is cheaper per gallon, but since you get lower MPG you end up spending about the same as you would with regular unleaded.

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Posted by Bmath

Member since Aug 2010

18682 posts

Posted on 11/20/14 at 10:55 am to HottyToddy7

E85 is less fuel efficient, but was pushed as a way to lower our dependence on foreign oil.

Economically it makes little sense in the US as the ethanol is produced from corn. The corn is very energy intensive to produce, and farming receives heavy government subsidies.

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Posted by Tigahs

Member since Jan 2004

22836 posts

Posted on 11/20/14 at 11:08 am to HottyToddy7

LINK

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