I have a 2013 6.4, and it was determined from a dealer tech that I had one of my lifters go bad. The motor has a knock to it. Sounds like detonation when I accelerate. Doesn't do it any other time. He found a piece of metal in the mds sensor, and a misfire on #1. So my question is, can I drive it about 50 miles to my house? When I checked the dipstick, there is no flakes in the oil. We thought I got some bad gas. Doesn't seem to be the issue.