G'day John,
Have you posed the same question on the IsuzuOz Forum? You may get a wider number of answers - like this forum, I've found the members quite helpful.
My car is relatively new with 20,000kms on the clock.

Hi DeBe
Izuzu are fixing under warranty but I will get them to check possible cause as I have not heard to many good reports about the new beaut dpf filters
Cheers

Yes has been burning off but on the way to the dealer when lengine light was on there was no burning then light went off and it did a burn then light came back on again and Izuzu said it needs a new turbo

Cheers Aus_Kiwi

My first problem, in my 4wd started at 150k km, which ultimately, was the very start of a lot of other problems, leading my vehicle becoming the Lemon that it is now. But the first problem, was limp mode. Their was a code, which all it said was Check Engine, well check engine cost me nearly 2000 dollars. But ultimately, it was a very obscure part in the turbo - the turbo solenoid. Prior to finding this over 4 months, no previous mechanic could fix it. Since that incident, have spend nearly $7000 on problems, of the engine, and auto gearbox. I should have sold it, or just scrapped it, but it was a $65000 car. Selling it, would have meant, some poorer soul then me, would have been ripped off, and I just can't justify that. Will be shelved soon and sold as parts, as am looking for an older car, with less or no electronics and computer.