I've been waiting on my parts for the TSB and the fuel pump recall since October 2023. I have a winch to install on my 2021 Gladiator but I don't want to give the dealer a reason to say they can't do the TSB.
You might want to check some truck stops. I fill the DEF tank up on my Ram at a local truck stop for $2.67 a gallon. I do keep a box in my garage just in case. I will be filling my Gladiator up at the same place. Fair warning about the DEF pumps, They pump fast. So don't get in a hurry pumping...
I got the diesel because, I'm use to the power and the fuel economy that the diesel provides. I have about 500 miles on the Gladiator now and it is showing 23 mpg. Of course, My Ram 3500 gets nowhere close to that mpg. But I can pull whatever I want to pull with the Ram.
I picked up my 2021 Jeep Gladiator Rubicon eco diesel, on 12/27/21 on my way back from Vacation. So now I can park my 2018 Ram 3500 dually once in a while. I have a lot to learn about this Jeep.