I highly recommend Mobil synthetic 5w-30 and 10w-30. I have been using it in all of my cars, since 1977 and all who have worked on my engines comment how clean they have been. All quick to start in Michigan and Maryland cold weather, always better MPG than manufacturer stated, never overheating, and no oil consumption with age. I recommend starting from the beginning with your vehicle. It is an excellent product

Expensive for a wholesale club

Cheaper at Walmart. I retutned this item and went to Walmart. Imagine that!

Manufacturers recommended oil so it must be good and I got it on sale at a Great price.

Good price when it's on sale.

Great price and quick shipping.

Good oil, good price, good delivery. They only issue I had was the email kept saying I ordered Mobile 15w-30 instead off Mobile 1 5w-30

I change oil once per year. Mobil I gives about three miles per gallon of gas better than Motorcraft synthetic blend.

truck motor seems quieter after oil change and mileage increased 2 MPG for the first 500 miles so far.

[This review was collected as part of a promotion.] Mobile 1 synthetic oil is the absolute best in quality for my vehicle.