Hi All - First off, great forum and great information. I have been lurking, reading, and learning a lot over the past few days. I am particularly grateful for the great write-ups on oil changes and diff/tc fluid changes. I will be doing my first DIY oil change on our 2012 LR4 as soon as the gear arrives from Amazon. Tired of the stealership prices. I have already ordered the Mobil 1 EP 5W-20 so that will be going in on this oil change. Today, I got wind of the Costco deal for Kirkland Signature 5W-20 Full Synthetic that is $24.99 for (2) 5 quart jugs after a $5 off and free shipping (local sales tax applied at checkout). I am getting some of the 0W-20 for my GMC pickup truck, but I wanted to ask the brain trust here if this brand of oil is compatible with our engines? The site says: " Applications For use in gasoline, ex-fuel or gasoline-electric hybrid vehicles requiring SAE 5W-20 API SN PLUS, SN, SL and ILSAC GF-5, GF-4 or previous standards. Approved for use in all GM gasoline engines requiring dexos1™ Gen 2 5W-20." Thanks again for all of the help and I look forward to your replies.