My 10 year old son wanted a trolley at the local train show earlier this year so we picked one up.
We have oiled and greased everything, but we still get this squeaking noise, and the car itself doesn’t run smoothly.
https://youtu.be/_EpyXYNIu5M?si=x2U79bRa9EIwvxtfAny tips / things to look at to make this run right?