nz fuel is fairly crap, tho far better since the anti smoking law came out and fuel co imported half decent stuff. i swear we still get rejected fuel from other countries.
but from what i hear OZ is far far worse. but your auto industry is brainwashed into thinking that smoky diesels are good diesels. so its not going to change anytime soon.
it not just a couple of cases on a few forums, its lots on forums, it even makes the tv news.
also need to consider that most late model vehicle owners are the older age group who generally do not participate in online forums.
we have had several notion wide lots of contaminated fuel before which blew up engines and caused a few maritime incidents. most where paid out by fuel co's.
and rotten garage owners mixing their own concoctions aint the modern diesel engines fault...
really this rotten fuel is another topic entirely as 2 stroke wont fix rotten mixed up diesel .
no its not the engines fault but its still cost you 10-20k for a new injection system.
if your lucky you can get insurance to cover it. over here insurance does not cover it and petrol stations deny it al together. so your caught between a rock and a hard place.
its up to you to make sure your engine lasts as its you who will be paying for the repairs.
2T certainly can fix rotten fuel, depending on how bad it is of course. the lube test done in the states shows that.
have a read through some countries which have 3rd world fuel supplies. 2T is a very common fix.
also do not forget that a few truck manufactures run lossy oil systems. they inject engine oil into the diesel. the comments i've seen is they rarely ever have injector faults. but they do suffer combustion chamber fouling as engine oil is not made to burn clean like 2T is.
edit: to add i think it was a hilux forum somewhere where they where regularly changing injectors. with 2T they had no injectors problems.