Skip to Main Content
Sam's Club
Sam's Club
All Departments
All Services
Customer reviews for Mobil 1 5W-30 6 pk, 1 quart bottles for
Mobil 1 5W-30 6 pk, 1 quart bottles
4.9 out of 5 stars
stars
1,661 ratings610 reviews
  1. 5 stars93% (1,552)
  2. 4 stars4% (62)
  3. 3 stars1% (20)
  4. 2 stars0% (4)
  5. 1 star1% (23)
Sort by |
Showing 1-10 of 610 reviews
Jun 16, 2026
Dan
5 out of 5 stars review

Verified Purchase

best oil for price

the mobile advanced fullsynthetic motor oil is one of the best full synthetic oil out there. I could immediately feel the difference when i added it to my car when i was a little low on oil between oil changes. kept my motor working at peak performance and when the oil was changed about a week later oil tech said oil was practically new. No deep discoloration.

Review from walmart.com
Helpful?5QVZ8PWUAYJQ7192494001
Jun 21, 2026
rd
5 out of 5 stars review

Verified Purchase

5W-30 vs 0W-20

Dropped my engine operating temperature by almost 10 degrees. On a long trip, that's a lot of engine ware. Mfgs would love for you to ware out your engine sooner than later.

Helpful?5QVZ8PWUAYJQ7192494001
Dec 9, 2025
WalmartCustomer
5 out of 5 stars review

Verified Purchase

Best oil

Mobil 1 is the best oil for an internal combustion engine because it stays fluid at very low temperatures. When you start your engine on a cold Winter day, that is where most of the wear and tear occurs. Mobil 1 mitigates that. Worth the extra cost. I use it in everything, vehicles, lawnmowers, snowblowers, generator.

Review from walmart.com
Helpful?5QVZ8PWUAYJQ7192494001
Jul 15, 2026
wayne from Opp
5 out of 5 stars review

Verified Purchase

Mobil 1 5w30 Synthetic

This is very good oil. I use it in all my vehicles (with appropriate weights varying by vehicle requirement)

Helpful?5QVZ8PWUAYJQ7192494001
Feb 7, 2026
Twayne
5 out of 5 stars review

Verified Purchase

A bargain if you change your own oil.

I have had $90.00 plus oil change charges and regularly pay about seventy dollars. By changing my own oil using the oil and buying a quality oil filter I spend about $45.00.

Helpful?5QVZ8PWUAYJQ7192494001
Dec 13, 2016
T2016
5 out of 5 stars review

Verified Purchase

Most folks knows mobile one is the best but hard to find at the price I have purchased it. I am so happy finding this motor oil at that price. This is a good stuff that lasts longer than regular motor oil. I recommend this for anyone uses fully synthetic motor oil.

Helpful?5QVZ8PWUAYJQ7192494001
Apr 25, 2026
Mark
5 out of 5 stars review

Verified Purchase

The best oil you can put in your cars! In a world of "Synthetic Oils" Mobil 1 is one of the few true synthetics.

Review from walmart.com
Helpful?5QVZ8PWUAYJQ7192494001
May 26, 2026
david
5 out of 5 stars review

Verified Purchase

I use mobil 1 in all my cars.

Review from walmart.com
Helpful?5QVZ8PWUAYJQ7192494001
May 31, 2026
Judd
5 out of 5 stars review

Verified Purchase

Works great have 170k plus miles, great product.

Use on my 2010 Dodge Charger.

Helpful?5QVZ8PWUAYJQ7192494001
Mar 5, 2026
WalmartCustomer
4 out of 5 stars review

Verified Purchase

The oil is good quality but I didn't et all of it that I needed. After ordering and paying for it, I found out Walmart didn't have all of it that I needed.

Review from walmart.com
Helpful?5QVZ8PWUAYJQ7192494001