Issue With Raising Front End for Maintenance ?

I see that in my dealers shop they had a Renegade standing up on its back end (hung from a hoist actually).
I asked the mechanic if there was a risk of loosing fuel and he said no.
Are there any other issues with fluids.
I have a chain hoist in the garage.
Do any of you folks stand Outlanders up to do skids, plow plates, grease or other maintenance ?
What about the diffs ?