I did my own oil change on my Triton V10. Used Mobil 1 Extended Synthetic (15,000 miles) and a Fram PH2 filter. The whole thing shouldn't have taken no more than 30 minutes if it wasn't for the filter that wouldn't come lose. I put so much effort on it that I was crushing the filter. At one point I was going to just leave the old filter in place, then I sprayed some WD40 at the top and after much more fighting it came loose. Now this is the second oil change. The first one done at a Camping World in Arizona at 2800 miles. I now have 7800 miles so basically 5000 miles. What concerned me most is that the old oil was practically black and somehow a little thick. It got me to worry if CW did actually change the oil the first time. There are so much bad reviews about them. Anyway, is it normal for the oil to be that dirty after 5000 miles? I will be checking the oil often and change between 5 and 10 miles.