Change in oil useage for new common rail diesels

I went to the shops today to buy some oil for my common rail diesel 4x4 and casually read the details on the can.

I was surprised to read a new exclusion on the can. Standard diesel oil 15w40.

"Not recommended for vehicles fitted with Diesel Particluate Filters or petrol engines with catalytic converters."

Now this was not on the previous can of oil I purchased so what has happened?

This can of 20litres of oil cost $99. There was another brand of fully synthetic oil which did say it was suitable but cost $109 for 10 litres.

So what gives? What are other people using in their common rail diesels?

Cheers

Serendipity


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