Costco's 5W-20 Synthetic Blend Oil The Smart Choice for Engine Longevity

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 ... 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-rings, etc and also ... Performance Plus® 5W-20 Full Synthetic ~ SP/GF-6 (Case of 4, 5 Qt. Bottles) ... An all-season, synthetic blend motor oil that provides optimum engine protection. Surpasses Honda vehicle requirements to further minimize harmful engine ... Kirkland Signature 5W-20 Full Synthetic Motor Oil 5-quart, 4-pack 4-5 Quart (4.73L) Bottles Advanced Wear Protection For Extended Engine ... It's for 5w30, but I would definitely expect the same results for 0w20 with Kirkland. Based on the ... For 7500 miles a full synthetic may not be necessary though. The "conventional" and syn blend oils are of really high quality anymore. By their ... I've been using the Kirkland oil now for years with great results as all my vehicles generally go to 250K miles or more. However, I change my oil every 5000 ... Does anyone have an opinion on using Kirkland Signature 0W-20 or 0W-30 Full Synthetic Motor Oil from Costco? I have a 2016 F80 M3 with 32k miles. Buying the (2x) 5 quart package at Costco eventually gives you a free oil change every third interval. That package costs about $40 for 10 ...