How sturdy are All Terrain Campers?

[Sando]

Can you explain oil canning?

 

[Wandering Sagebrush]

The bonking noise old fashioned oil cans made when you pressed the bottom to get a drop of oil. It was caused by wind blowing over the top. The Grandby we had was so loud it continually woke us up. With full disclosure, I sold the camper because of it.

There are several threads on the topic.