My 2016 Nissan Maxima left muffler is leaking fluid?

Hello, fluid coming out of a muffler is often condensation. The coloring can be from carbon, a byproduct of the internal combustion engine. This is likely no cause for concern. If performance of the vehicle is lacking, then perhaps have this inspected.

Should disappear after engine is at normal operating temperature and vehicle has been driven - IF this is not the case - then seek *hands-on* inspection by qualified personnel.