I purchased a 5j D2 about a year ago. It had been sitting for over 10 years before i got it. It only shows 100 hours and i know the hour meter is working since i have put 5 hours on it so far. It runs excellent. The pony always fires on the first pull and the big engine runs great with good power and no blue smoke. Could this tag on the pony full tank be some kind of rebuild tag from the Cat dealer? It seems to have numbers that could be engine part sizes. There is some black lettering under the yellow paint but i can't make it out. I may trysome paint remover but i would hate to remove the black lettering also. Anyone have any thouts about what this tag is? I know this machine has more than 100 hours since it has Berco undercarriage.