I know, I know, its July and over 90 degrees outside. But I have noticed some threads where people knocked Castrol's cold weather abilities. A check of their 5w30 data sheet recently aquired shows a CCS of <6600@-30 C, which is on a par with many other dino 5w30's. Is it beacuse the Castrol has a higher pour point than Pennzoil or others? I thought CCS was the best measure of cold weather performance.