So I'm new here my first time post and wow what a great deal of knowledge. I know its probably been asked million times but here is my situation. Just picked up a LS 460 with 92k Dealer maintained with a stack of records. Regular oil changes using "synthetic" from the dealer. Records say oil level is down 1-2 quarts between oil changes 5-7k. Not burning (smoke) and no leaks (garage floor). I use AMS in all of my other vehicles but after reading here and seeing the deals on Mobil 1 available might be a convert for this car since it holds 9qts. Anyway, we are headed into a long hot summer, oil fill cap says 0W-20 or 5W-20 . when i use search tool on AMS site it calls for 0W-20 but was thinking about the high mileage 5w-20. What would you use and why, thank you....
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