High or low, extreme temperatures can directly impact the performance of your motor oil. Pennzoil Platinum® and Pennzoil Ultra Platinum™ Full Synthetic motor oils rely on PurePlus Technology™, a process that creates base oil from natural gas instead of crude oil. PurePlus™ base oil won't "gel" in extreme low temperatures, so your engine can still pump oil even on extremely cold days. It also won't evaporate or break down when exposed to extreme high temperatures inside your engine. The oxidation stability of Pennzoil Platinum® and Pennzoil Ultra Platinum™ Full Synthetic motor oils make them ideal for today's direct injection and turbocharged engines that run hotter.