Re: Is less running harmful for diesel hatches??
First of all welcome to the group!
As said earlier, the reason for choosing a diesel or a petrol engine depends on your monthly or yearly run. In case you are planning to keep the car for more than 5 years, I dont think it makes much of a difference, as over such a period, hike in petrol will obviously be more than diesel.
The only point is you will be able to savor the diesel machinery more when you use it for a longer runs. If the runs are purely academic like going to office and return, pick up a petrol, eyes closed.