Again, up to 80% of engine wear occurs during first startup (cold engine regardless of temperature). The time it takes for the oil to reach the vital engine's components and parts. That being said, for the best and fastest protection during startup is using an oil that has a 0w viscosity rating. Example, if your engine requires (designed to use) 5w-30 oil (w stands for winter) you could/should substitute that oil with 0w-30. This will ONLY allow the oil to flow faster during startup, regardless of what climate you live in. Now if you want the best engine oil protection you should find out (from the Stealer) if you can use full synthetic oil. If it is OK, I highly recommend using ANY full synthetic that is in the recommended ratings. Full synthetic oils have a much better flow rate (full synthetic is better in EVERY rating for oil). The OEM recommends 10w-40, 10w-30, 0w-30. With that said, 0w-30 or 0w-40 would provide the BEST protection. I personally will be using the 0w-40 Mobile 1 when I get my LE.