If you go to the site and check AWD/4WD and Diesel on the right side of the page it doesn't provide lifetime as an option (at least on this site)
CHRYSLER SERVICE CONTRACTS: Extended Warranties from Chrysler. SAVE 60%! Quick Quotes. Buy Online.
which is what I am guessing you used?
Here is what I did, tell me if you did something different because I would LOVE to get the lifetime
clicked on quick quote Chrysler Dodge Jeep
Select model JGC5
Current odo reading I just put 4
5 lines or so down where it says
Please select if this vehicle has AWD/4X4 Diesel (check both)
If this vehicle has....select yes
Is this vehicle within 12 mo....select yes
From its org war....select 7 because that is the longest duration showing
Select preferred deductible....$100
How many miles per year...I used 12001 to 15000
Then select get quote
Max Care comes up with this as the longest duration
8 120,000 WM8120N $2,000.00
If you used a different site that allows US diesel models to get Lifetime please share. Canada can get Lifetime but for much bigger bucks.