5W-20 Synthetic Blend Oil Ultimate Engine Protection from Costco

Thoughts on Costco's Kirkland Synthetic Oil? I have about 3 quarts on hand of Penzoil Platinum. Would there be an issue mixing it with 3qts ... I wouldn't recommend a 5w20 on track. You need a bit thicker oil for both temp performance and viscosity. 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 ... Kirkland Signature 5W-30 Full Synthetic Motor Oil, 5-quart, 2-pack 2-5 Quart (4.73L) Bottles Advanced Wear Protection For Extended Engine ... Castrol Edge 5W20 Full Synthetic Engine Oil 3-pack, 5L Jug Castrol EDGE Full Synthetic 5W20 Engine Oil. ... 0W-20 oil. The Ford specs are not mentioned as being required in the ... blended oils are only about 20% synthetic. One last note -- people have ... General MINI Talk - Kirkland Synthetic Oil - Hi, I got a '12 S and was excited to see Costco announcing synthetic oil. I don't think this applies to oil. If you buy carefully on Amazon, you can buy Pennzoil 5W-30 synthetic for about $18 per 5 gallon jug. This is ... The Warren Distribution company also blends and makes Mobil 1 5W30 High Mileage blend. You may assume that if you buy Costco Kirkland 5W30 High ... :mad: . I was at Costco last week and saw they had full synthetic oil, 10 quarts for roughly $33. I'm a huge believer in peace of ...