I 've bought several cases for my cars ...Bottle says it's good up to 15K miles . Read it twice . Smooth oil for smooth motor !

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

Its a solid oil. Full synthetic is what is required in multiple vehicles i own and ive been running it for close to a decade with no issues.

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

Great oil for many years, motors go for at least 350,000 miles without even pulling the valve cover or replacing any parts.

Best Synthetic oil I've ever used. Pumps excellent in cold weather making for easier starts. Outstanding for every day use and in stop/go driving and in summer heat. I've never used a better motor oil. I would buy this oil at any price.

Sam’s and their products are awesome

Great oil with a great price.

[This review was collected as part of a promotion.] It is a good product.

Used in all my new cars over the years. A quality product.