I have been trying to remove the fill plug on the transmission in the '06 and have had to try several things before I could get it out. The problem is that one cannot get a straight shot at it due to the master cylinder being right over the top of it. I tried a 12-point socket and a universal joint, but could not keep the socket on the hex and was in danger of rounding it off. Next, I bought a crow-foot wrench, which gave me sufficient offset that the extensions were vertical, but that, too, was rounding the hex. I finally bought a six-point (I'm not that slow a learner, I just did not have one in my poorly stocked tool kit) and used an old 1/2" drive flex handle, which happens to have a female 1/2" drive on the handle end. That was perfect, since it was just the right length and had the usual flex joint (maybe that is why it is called a "flex handle" by most and a "breaker or break-over bar by others ). I happen to have two such flex handles, so I hooked the second one to my newly discovered extension and broke it loose. I did not have anything to use as a "cheater" extension, so it was really hard to break it loose. It will never be that tight again!