I was talking to the mechanic who does my roadworthies yesterday and he told me many of the new diesels with DPF are having the same problem.
He said that Mazda 3 diesels particularly make lots of oil and have an "X" above the full mark that should not be exceeded. LOL
As an aside he is somewhat of a Subaru expert and told me that the new Subaru engines with timing chains are using prodigious amounts of oil so much so that 2 customers had run out before the next service was due and been given new engines by Subaru, and the new engines were using heaps of oil.
Regards Philip A

