Newby here. Just broke out my 1971 .027 Allegheny set for my 2 year old Grand Daughter (who's now crazy about trains after visiting a train museum) after being in a box for 30+ years. Cleaned up the cars and engine, applied a little machine oil to the lube points, and the thing still ran! (this speaks volumes to the quality of Lionel's.) While it ran, it was still a little sluggish and I had to run the transformer almost all the way up to get her moving. I'm guessing the tracks could use a good cleaning but any other info much appreciated.