Maximize Engine Life Costco's 5W-20 Synthetic Blend Oil for Extended Durability

Kirkland Signature 5W-20 Full Synthetic Motor Oil 5-quart, 4-pack 4-5 Quart (4.73L) Bottles Advanced Wear Protection For Extended Engine ... For your cars? I just got a Costco membership, and I noticed I can get 10 quarts of Kirkland synthetic oil for $30 bucks. 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 ... All feedback is greatly appreciated and my entire reason for considering using 5w30 is because costco has 5litre jug of 5w30 selling for 20 ... 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 ... Performance Plus® 5W-20 Full Synthetic ~ SP/GF-6 (Case of 4, 5 Qt. Bottles) ... Kirkland Signature™ Full Synthetic 5W-20 Motor Oil is for use in gasoline, ex-fuel or gasoline-electric hybrid vehicles requiring SAE 5W-20 API SP, SN PLUS, SN, ... Thoughts on using the new Kirkland synthetic motor oil. It's made by Warren. $24.99 for 10 quarts. I used it for my son's Saturn as it's labeled as good for ... Kirkland Signature 5W-20 Full Synthetic Motor Oil 5-quart, 2-pack 2-5 Quart (4.73L) Bottles Advanced Wear Protection For Extended Engine ... Do NOT use Costco Kirkland Signature Full Synthetic motor oil! I bought a box of two bottles (5qts each of 0W-20) and used it twice, first oil ...