I have been following this thread for a while now. And i see many concerned with diesel. I have owned many diesel vehicles and am currently using a 3rd gen Pajero 3.2 Did.
Maintenance: The oil change is more frequent and the fuel filter needs replacement at every 10k, the rest is no issues
Usage: It requires a bit more care than petrol, needs to be warmed up before usage, and due to our diesel, needs to be floored every now and then so that no dirt gets stuck in the system.
Advantages: The turbo kick is amazing, the torque is unbelievable, And i can go through bonnet deep water without worrying. Also, the fuel economy is a lot better than petrol.
Disadvantages: Needs care(as stated above), and lack of proper technicians for it.
Hope this answer many queries, open to any questions