This is the definitive website on sludge issues. The Center for Auto Safety has a series of informative articles on those cars with sludge issues. This includes vehicles from
Saab, Chrysler, Toyota and VW/Audi.
http://www.autosafety.org/getcat.php?cid=28
Saab, Chrysler, Toyota and VW/Audi.
http://www.autosafety.org/getcat.php?cid=28