Toyota Diesel Hilux or Prado Injector Seal and engine oil starvation problem

We are currently reviewing vehicle options and I was wondering if anyone had heard about some serious problems in the Media recently with regard to the Toyota D4D 3.0 diesel Engine in Hilux & Prado.

http://www.news.com.au/news/ute-tough-but-breakable/story-fn9y0y36-1226351998636

http://www.heraldsun.com.au/ipad/no-im-afraid-its-not-prada/story-fn9xzkw8-1226359199033

http://www.productreview.com.au/r/toyota-hiace-2005-present/205358.html

Apparently the Injector seal leaks & related problems in HiAce, Hilux & Prado possibly known to many owners, have also now been linked to “Clogging of the oil Pickup Screen” & Oil starvation of the engine. This apparently can lead to premature engine failure if not identified and dealt with early. Checking complaints on line with this issue, evidence seems to suggest this has occurred even with the regular service of the engines within authorised service programs, and it is not being picked up before it’s too late within the normal service programs.

Can anyone comment about experiences or knowledge of this issue, particularly with HiLux or Prado? We are looking at either and some other people I have spoken to have said they were aware of problems with the 3.0 D4D in these vehicles as well.

I found another post elsewhere that would seem to confirm that this is definitely a current issue in Europe, with a major customer contact campaign currently underway until August next year on Vehicles as Early as 2006

http://www.toyota-tech.eu/toms_cabs/EN/1KET-015.pdf

Would value some feedback prior to making our next purchase.