I've done a lot of testing with different oils in several of my vehicles over the years, but have never actually asked the question: What oil weight works best? Who makes the best of each weight, etc? In this situation my car requires 5w-30, but can I use that year round or should I consider using 0w-30 or 10w-30 during different seasons of the year(I live in north Mississippi)? I've tried to read about all of this here on BITOG, but keep getting scattered information. So What do you think and why? And to clarify, this would be a straight oil change, w/no additives, and a new filter of course. My vehicle and current setup is listed in my signature. I've come to prefer Valvoline Max-Life, but am always open minded to new knowledge.
-Thanks
-Thanks