We have 2 Nissan dealerships here in Albuquerque. Reliable Nissan and Melloy Nissan.
Reliable Nissan said they would not warranty the CVT axle seals, but Melloy Nissan did. Just depends on the dealership I guess and how they interpret the wording in the warranty description.
Some other things to watch out for is noises. Listen for any odd noises like the motor sounding like an old diesel motor or other repetitive grinding noises, squeaks, etc. The MO should be quiet.
Noises that are usually up front, that start as a low level droan in tone that gets higher as you speed up, are usually the front bearing assemblies.
Repetitive noises that occur at start-up or just after you turn off the motor mean the electronic motor mounts are starting to fail.
Listen for excessive clattering on start-up of the motor. Some forum members have had issues with the timing chain auto tensioner.
One more thing, I tend to stay away from the salvage titles. Who knows what the 06 MO went through to get that title. The 06's were a bit nicer than the 04's on the trim levels, but almost 100% identical for the drivetrain. I'd need to know what the accident entailed and 100% proof that everything was completely repaired on the 06 MO before I'd buy it. I'd need reports on how straight the chassis is, alignment report, emissions, AC check, PS check, etc, etc, etc. And after I did I'd look into getting the salvage title removed.
After 142K miles, my MO is history. Now sporting a loaded silver 2012 Ford Edge Limited with 20" wheels.