Been using and trusting Mobil 1 5W-30 for over 30 years in all my cars and trucks and not once had any engine problems or failures. Great product.

I have Used Mobil 1 for years. Factory fill for Nissan GTR and recommended by Nissan for their other vehicles.

I have been using this oil in my vehicle for the past several years and Sam's has the best price. It keeps my vehicle running like new.

Mobil One Synthetic Oil doubles your car engine life. Little to no wear on working parts that " keep your motor runnin"!

I appreciate changing my oil and then forgetting about it til the next change, Mobil has proven reliabl\ility and I count on that.

I have used Mobil 1 in my cars for a little long time. It has provided great lunrication to my high performance engines.

Tried other products but stick by the Mobil 1. A big fan, they have just what I need and can find just about anywhere.

Now it’s on sale for eight dollars less and it was only two weeks ago so I guess I have to try to get my difference back

Excellent oil and is sold at a good price. Makes my cars run smooth. My store is always out of it. So, I haven't purchased any in months.

I've been using this oil for years and would not use anything else. Sam's sell it at a good price and packaged with six quarts.