Maximize Fuel Efficiency with Costco's Remarkable 5W-20 Synthetic Blend Oil

Has anyone used Costco oil for the GS-F? I use the 5W-20 for the GX-460 and the Camry and it has been great. Any experience with this oil for ... Well Maybe! My next oil change in about 5,000 miles will use Costco's Kirkland 5-30 full synthetic oil, unless someone talks me out of it! WD also blends motor oils for major retail chain stores like ... Shell Rotella T6 5w-40 Full Synthetic Motor Oil or. Shell Rotella T6 ... 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 ... It's for 5w30, but I would definitely expect the same results for 0w20 with Kirkland. Based on the ... Anyone have any experience, good or bad, with using Kirkland Signature 0W-20 Full Synthetic Motor Oil? Costco has it for $63.99 (4-5qt bottles) right now. Costco sells the Mobil 1 5W-20 High Mileage synthetic. Price isn't as good though. One thing about seal conditioners - they soften the O ... Kirkland 5W-30, 10 quarts, currently $24.99. 2008 S80 3.2, Sport and Climate packages, Barents Blue. 2014 XC60 T6 AWD Premier Plus with ... You can also specify what grade of oil you want. I do that now, and specify full synthetic 5W30. In and out in 20 minutes, with factory filter ... For your cars? I just got a Costco membership, and I noticed I can get 10 quarts of Kirkland synthetic oil for $30 bucks.