To anyone who has possibly seen this.....I freaked out the first time I saw this, and spoke with some other people who have seen this...I pulled my dipstick the other day at the gas station while filling up and just about screamed as I burned my hand, and also found smoke coming from my dipstick tube,..and deposits built up on the dipstick where the two halves are riveted together. I first thought that I was overheating (I was running the truck hard).....but what I found out was when the dipstick is all the way in the tube, that riveted part of the dipstick is sitting right next to (almost touching) the exhaust manifold, which in turn is heating up this part of the dipstick causing the smoke/deposit formation. Just wanted to give everyone a heads up with these trucks. --Ponch