The VW ones are well documented.
Which Ford and Chrysler models are you referring to?
Ford has had some problems with oil gelling in the Jaguar X-Type 2.5 (and its Mondeo cousin). DCX had problems with the 2.7L V6, but said they fixed it shortly after introduction (ha ha). Mercedes has also had problems and raised their warranty coverage for the issue to 150K after they were sued, for *all* 98-01 cars (and sludging has been reported on everything from A-class to S-class): http://www.alldata.com/tsb/Mercedes-Benz/1070611200000_1075276800000_P-18-00-20/