Well Ford went and did it. The fuel filter location has finally changed. For all of you pre-2005 owners, the filter is no longer in front of the rear end. It has been moved under a cover that is located on the driver-side under-body. You can pick up a new filter on our website here: 05-10 Mustang Fuel Filter. This is a quality Motorcraft replacement filter that will work on all 05-10 Mustangs with 4.0L, 4.6L, & 5.4L engines. I changed mine with 15,000 miles on it and the gas that came out was "nasty" to say the least. I would try to change the filter every 15,000 miles. The installation is easy and quick. It is taking me longer to write this than it took to change it out.