Fuel filter replacement

[logan.d122]

I have an '02 Explorer Limited V8. How often should i replace the fuel filter? I don't know the last time it was changed. And where is the filter located?

Also, how often should the air filter be replaced? I'm trying the increase my fuel economy. If you have any other ideas on how to do this let me know.

Thanks!

 

[fusseli]

Air filter only needs repalced if it's dirty.

Fuel filter is easy enough to change and if it's never been done you should definitely do it unless you have uncommonly low miles http://www.explorerforum.com/forums/showthread.php?t=198626