When I first got the truck, oil was at the 3/4 mark. At around 1200 miles, I noticed indicated level had risen to the full mark and I was concerned. So I changed the oil at 1200 miles and sent a sample in for analysis. I can only assume something changed with the oil level sensor since the report only showed .8% fuel dilution. I have heard of some issues with the oil level sensor, but haven't heard much detail on wether there is some defect. I will bring it up with my local servicing dealer. Interested if anyone else has had issues. Thanks.