I just purchased a new FJ a week ago and have been online reading alot about this great vehicle but have found two common complaints. One is the fender bulge issue that I was aware of a few years ago when I first looked at the FJ and the 2nd issue I find more troubling is the frame rust/rot problem. I was under the assumption that it was a Tacoma and Tundra problem only. Since the FJ is based on the previous gen 4Runner I assumed there wasn't an issue. I owned an '04 Tundra Dbl. Cab and after 3 years the frame looked bad. But I've had three 4Runners, a '99, a '02 and an '05 and they were the best vehicles I've owned. Their frames held up very well, no signs of rust or fatigue. So what gives? Is this a serious problem that I should take action to prevent premature rusting? Has anyone here had Ziebart do an underbody coating and how well does it hold up?