When my Mazda5 hit the 30k mile mark, the dealer tried to sell me their 30k mile service. I had read the manual prior to this and realized that a lot of the stuff he was planning on doing wasn't listed in the manual. One of the things he wanted to do was replace the fuel filter. When I told him the manual does not mention this, he sheepishly said that I was right. Then he said something strange, something like the Mazda5 does not have a fuel filter, or, to replace it, you have to remove the gas tank. Does anyone have any idea if the Mazda5 has a replaceable fuel filter, and if so, where it is located? I have never heard of a car that did not have a replaceable fuel filter, but I've looked under the hood and under the car and cannot locate anything that looks like a fuel filter. The dealer's comment about removing the gas tank sounded like maybe it has some type of non-replaceable filter designed to last the life of the car, but I really have no idea. Any help would be appreciated.