I wouldn't dissuade anyone from getting a diesel JL. I am in the process of trading in my Diesel Grand Cherokee for a 3.6 Rubicon. Simply had enough emissions related issues with the 3.0. It is a great engine and I love it but the DEF issues and emission related check engine lights have turned me off on getting it in my Rubicon. The GC is currently at the dealer again getting NOX sensors replaced. Oh by the way they are removing the engine today to drill out the broken bolts in the turbo!