Hey guys, I have learned more from this forum than I have by reading Mustangworld, Stangnet, and The corral combined. I have a 2001 GT automatic and it suffers from the now famous "Cold Tick" I picked the car up January 12th....about 20 degrees and no ticking all winter. Once it began to become cooler, the ticking started. I use Castrol Syntec 10w-30 and I am switching to Amsoil 5w-20 this weekend and see if this offers a remedy. It's doubtful, but at this point, who knows what will and will not work. Thanks guys.