Quote Originally Posted by TheOtherNick View Post
Its not dex cool's fault. Its called poor maintenance. Check the electrolysis of your coolant when it gets over .25V you need a flush.
it has never looked like that before it was parked when my dad got a new buick. yes it should have been flushed before this happend (he had it flushed a while ago). maintence on this car has been premium, 301,000 miles, orginal motor/trans, and its still running better then just about any car out there thats 13yrs old. dad is the original owner also.

but i agree, should of had a flush and put different coolant in there.