Hi I think there are grounds for a class action laws suit, however i am no lawyer. The 2AD-FTV engine has been around since 2005 in two different displacements, and from the european TSBs they have had this problem since then, yet they still released the engine in Australia that they classify as "harsh conditions". BTW the solution was still the same which was to replace pistons etc. This may make interesting reading; links below: http://www.toyotaownersclub.com/forums/topic/132178-charliefarlies-guide-to-the-toyota-2ad-diesel-engine-and-its-issues/ and in regards the the class action, there is one gaining steam in the US for the petrol engines http://www.carcomplaints.com/news/2014/attorneys-investigate-complaints-toyota-excessive-oil-consumption.shtml This problem is extremely frustrating but i urge you all to write a letter of demand and use the template on the fair trading website http://www.fairtrading.nsw.gov.au/ftw/About_us/Our_services/Resolving_issues/Talk_it_over.page From my understanding there is a process in place with fair trading, the first step in to write a letter of demand to your dealer. Cheers