What is the sure fire way to tell that a 2007 F-150 5.4L Triton can use E-85?

 

What's it say in the owners manual ? The 8th letter in your VIN should also be a "V" if it's a flex fuel vehicle. The sticker under the hood will also say it's a FFV or Flex Fuel Vehicle. E85 will give you better power but trades off overall fuel mileage, so it's a wash.

https://www.fleet.ford.com/ngtemplat...ce/VIN2007.pdf





-Mike

 

a yellow gas cap that says E-85 may help too..

 

mine is flex fuel and has a black cap. I thought in '07 they were all flex fuel?

 

06 black cap flex fuel....

 

my 08 is FF and has a yellow gas cap that say E-85 on it...check your VIN then like stated above.

 

my question why would want to use E85?

I used E85 in the work van. Normally it gets 13mpg, got 2 tanks in a row of E85 by the end of the 2nd tank I got 8mpg.
The E85 was not 1/3 cheaper than gas so why bother

 

my truck is flex fuel and my gas cap is black...

 

did they even have E85 in 06 ??

 

My 07' is a Flex Fuel and it has a black cap, but says to use either Unleaded or E-85 on the fuel door. Maybe in 2008 they had to change to yellow to meet a new standard.