Wife is leasing a Jeep Wrangler ecodiesel. This is the first time owning anything diesel for us. She changes her mind on cars and we decided to try a lease. She test drove the diesel and liked the sound and that it gets better mileage. I was reading the manual and it calls for ultra low sulfer diesel fuel.

Is there anything to look for at the pump?

DEF needs to be topped off every once in a while.

Are all DEF's the same? Walmart, Autozone, name brand? Anything to look for there as well?

We probably will not buy it at the end of the lease, but may look into diesel again if it's not too bad.