I just wanted to pass on a tip that I found to make it easier to change the Fuel filter on the V6. Loosen the fuel line support clamps forward and aft of the filter as this will give you a little more flex out of those rigid lines. My truck was starting to feel a little sluggish at 51,000 miles, so I dumped a bottle of Techron in and filled up with premium and ran it till it was almost empty, changed the filter and filled up with premium again. The sluggish feeling is gone and my average mileage is back to 22 MPG.