Timely, just sold my Skoda Superb diesel…not because of any problems. We had done 45000 kilometers in under two years. But left hand drive and now spending more time in the UK, it had to go. Completely fault free. 50mpg and cavernous (estate). It did though have an extended five year warranty, and despite short journeys, it also got plenty of long runs. Things that can go wrong, adblue system issues, egr valve issues, turbos, engine oil dilution and more (though the Skoda/VW group 150 tdi may not have all these potential problems. I have just bought a hybrid (NOT a plug in! ) Toyota Corolla tourer 2.0 in rhd for the UK. 50 mpg expected. Warranty extends up to ten years if you service each year with Toyota. Max 100’000 miles. I was very torn as I love diesel torque. But the emissions systems now have too many issues and complexities. Even finding a decent diesel with any manufacturers warranty is hard. Toyota hybrid? Imo the best, fairly simple and very well proven. Not sure, but I think I worked out when I was back in UK over the holidays that diesel is approx 6-7% dearer. Then adblue too, consumption for adblue varies between makers, model and use..so 45mpg on a petrol compares to 48 ish in a diesel? I think.. Road tax. I was looking at hybrid Rav4s. Then I saw the road tax. Fcuk that.
i guess someone had to do it. Petrol's have DPF's (PPF's) now too and have had EGR's for several decades. but thankfully no adblue. i've seen a couple of petrol's with PPF issues but as yet i've still to diagnose them as they have been within the manufacturers warranty period. my part of the world doesent see much in the way of emission faults though more are coming through as folk are hanging back for longer than normal because they dont want to go electric along with other uncertainties. these faults are mostly due to the type of commuting involved. long distance at higher speeds up here. but may start to become an issue for city dwellers.