At < 7-8k i’d definitely buy petrol though.
Now, see, I disagree here. This is assuming there’s a price premium of buying diesel over petrol. Now there is with new cars, and if you consider the exact same spec and age of car, there is with used cars. BUT if you have a set budget you could get a petrol OR a diesel for the same cash, the diesel would just be older. So you would spend the same amount of money and have lower running costs.
You’d have a car that’s a year or so older, but that doens’t necessarily make a lot of difference these days. My car was three years old when I got it, it still looked basically new, and still does two years later.
Any problem with DPF/DMF will wipe out any fuel savings
Yeah but you’ve only got a 1/20 or whatever chance of an expensive failure, where as you’ve got a 1/1 chance of saving fuel.