Hey guys, I'm new to this forum and F-150's in general. I have a 2010 FX4 and I am interested in improving the gas mileage ( I drive 160 miles a day). I have read a lot about electric fans, but I saw a post mentioning the 2010 elctric fan fitting in a 2008. Do the 2010's come stock with one? Also, any guesses about how this will affect my warranty? Sorry for all the questions, but im not very mechanical. Appreciate any help.

 

i heard they do?!?!...check your engine bay and if the fan is attached to the front of the engine, its mechanical.

 

If you can post pics. Everyone would like to see what the factory unit looks like and how many fans it has. Your fans should be covered by the factory warranty.