I have relied on Mobil1 for all my vehicles for years, and was happy to find that they had a formula that covered all the criteria for my new truck

Have only used Mobil 1 oil. Have not used 0w-20 until my recent cars have required it. I have never Had any issues while using Mobil 1 oil.

Not sure if I notice any fuel efficiency gains or not but I do notice how clean my engine stays after running this oil a few times in it!

We have 5 vehicles, including a vette and a SSR. We always use Mobil1 religiously and have never had an issue with our engines.

At 195,000 miles my daughters car needed a transfusion. Mobil synthetic was just what the doctor ordered.

Our 2007 Sienna 160k miles , looks as clean under the valve cover as new. Not stained, resin or other buildup.

Ordered the oil i needed online becase it said it wasnt available in my store. Had to go to my abilene sams for other items and saw they had it on the shelf and mine didnt arrive for a week, shipped fom california.

One of the two boxes was smashed up and one of the bottles leaking. Threw that bottle away. The money I saved buy buying in bulk was lost bc of the one leaking.

My husband only uses Mobile 1 for all our gas engines. It lubricates better than other oils.

This grade of oil is required for my car.