said by Vamp:I'd still avoid using Dexcool as it is said to cause that (and IMO is true, in addition to the plastic gasket being junk).
Really? How do you explain that only the older version of the GM 60 degree V6 (3100, 3400) has that problem when all other GM engines since 1996 have been using DexCool?
BTW, to the OP, you need to check out »
www.gmcanadiansettlement.ca for information on how to claim those repairs from GM, who have settled a class action lawsuit on the LIM gasket.