We purchased this vehicle in April of 2007 and had rarely driven it, when seven months later oil appears in the coolant "oh what a shocker". Naturally GM does not want to acknowledge this as a defect and is only willing to pay up to $100 of the repair cost as the vehicle is 6 years old, however; they are acknowledging the engines have a problem and are willing to reimburse for repair costs, yet refuse to do a recall. Leaving us financially responsible for a repair that should be fully covered by GM. I will never buy another GM product, I have always been a Ford man, and I should have stuck with what I know best.