Skip to Main Content
Sams Club
Sams Club
Customer reviews for Mobil 1 5W-20 Motor Oil 6 pack, 1-quart bottles for
Mobil 1 5W-20 Motor Oil 6 pack, 1-quart bottles
4.9 out of 5 stars
stars1,001 ratings471 reviews
  1. 5 stars93% (928)
  2. 4 stars4% (42)
  3. 3 stars1% (7)
  4. 2 stars1% (7)
  5. 1 star2% (17)

Member photos

  • +19 images
Sort by |
Showing 341-350 of 471 reviews
Feb 11, 2019
eddie046
5 out of 5 stars review

The only oil I'll use!

Been using Mobil 1 in all my vehicles since 1980, the only exception being my old 2001 Ram Cummins and I ran 15w-40 Delvac in that for the entire 250K miles I owned it. Currently using Mobil 1 5W-20 in my 2017 Ram Hemi with a Mobil 1 filter and changing every 10K miles. I have the Mopar lifetime warranty on this truck and at 59 may be my last new truck. Hoping to get 500K on this engine and I know with Mobil 1 it will be possible!

Review from mobiloil.com
Helpful?20ZUIKIMS38N7192444975
Aug 26, 2019
SeanJ
5 out of 5 stars review

Works better

Mobil1 5W-30 full synthetic with Dexos SN Plus is really an amazing motor oil. I tried it in both my Mercedes sedan and wife's GLE. It works much better than whatever 5W-40 the dealership had been putting in before. I noticed my engine heat gauge runs 1 tick mark lower that where it usually is and gets slightly better fuel economy.

Review from mobiloil.com
Helpful?20ZUIKIMS38N7192444975
Jul 29, 2019
Hoagy000
5 out of 5 stars review

Glad I switched

Been a fan of a competitor for some time, availability led me to switching to mobile 1. Right away I've noticed smoother operation, which is debatable, but what isn't is the better fuel economy our vehicles have picked up. I'd swear our vehicles have more power and even running the air conditioning we get a 1-2 mpg improvement. So far, I'm very impressed!

Review from mobiloil.com
Helpful?20ZUIKIMS38N7192444975
Dec 23, 2017
62beezer
5 out of 5 stars review

outstanding product,lot's of history with mobil1

proof is in the miles. my2003Ford Ranger4.0 just turned 174,500plus miles with this oil. used wix filters until high mileage mobil 1 filter became readily available 125, 000 miles were in dallas , tx traffic and hot texas weather,balance in Missouri weather since retiring. still no oil consumption or leaks, gives me20- 22 mpg, 5spd, 4x4 with 4.10 gears. use same oil in my john Deere 445 lawn tractor, john deere4x6 gator, new scaggs turf tiger zero turn mower and new ford f150 4x4 eco boost 3.5 whichjust turned 35,000 miles, with no consumption, As a side note, use 5W40 mobil1 in my 65 hp john deere turbo diesel 5320 tractor, just turned over1000 hrs.with no oil consumption. my wife's Toyota Avalon 2014, run 0W20 mobil1 with mobil1 filter, change oil once a year, usually just a bit over 10,000 miles. does not us a drop of oil, currently at 50,000 plus, will change after bad weather is out of here , southwest missouri . current oil still looks clean on dip stick. gave us 35mgp round trip to Dallas, tx, over thanksgiving nearly 900 miles on the road. why use any other oil, as is readily available even in rural Missouri.

Review from mobiloil.com
Helpful?20ZUIKIMS38N7192444975
Feb 3, 2015
Dave36
5 out of 5 stars review

Best Product for my toyota sienna 3.3

I switched from conventional oil in my Toyota Sienna to Mobil 1 5/30 at roughly 70K. I now know that conventional oil can cause sludge build up. Sludge is not a friend of any motor. I change my oil every 5K and also install a new Mobil 1 filter. My oil comes out a dark golden color--not black like the dyno oil did. The van actually uses no oil in 5K. It now has 130,000 miles on it and runs like new.

Review from mobiloil.com
Helpful?20ZUIKIMS38N7192444975
Nov 12, 2021
Jono21
5 out of 5 stars review

Great oil

[This review was collected as part of a promotion.] I can't say enough about Mobil 1 it's always a great oil and the 5w-20 weight is no exception to that. It just looks like a great oil when your pouring it. It always looks just as good during oil changes to assuming you do them regularly. Very pleased with this product

Review from exxonmobil.com
Helpful?20ZUIKIMS38N7192444975
Dec 12, 2017
Jeff47
2 out of 5 stars review

Will never purchase again!!

I was a firm believer in this oil and was very proud to tell people I was a user of Mobil 1 full synthetic! That is until I recently got a bad lifter tick and pulled the valley and valve covers off of my 2003 5.3 liter Silverado and seen the god awful gunk build up! It was unreal! Definitely not what I was expecting after spending good money on what I thought was great oil. I would not go over 6,000 miles between oil changes. I have built a fresh 5.3 and I will be using AMSOIL!!!!!

Review from mobiloil.com
Helpful?20ZUIKIMS38N7192444975
reply from Mobil 1

We are surprised to hear of your problem with engine sludge in your 2003 Silverado while using Mobil 1. Mobil 1 is especially formulated to combat the formation of sludge and deposits. In testing, Mobil 1 has been proven to clean up virtually all engine sludge in just one oil change. Unfortunately, we do not know the mileage on your Silverado, the driving conditions you typically operate in or your typical oil change interval while using Mobil 1. Given this is probably not a Mobil 1 quality related problem, we would be happy to work with you a solution to help address your current sludge build up issue. Please feel free to contact our technical help desk at 1.800.662.4525 to discuss in more details of this matter.

Feb 2, 2019
AA808
5 out of 5 stars review

2017 Subaru BRZ

I was first introduced to Mobil 1 synthetic with my previous car - 2008 Corvette. After a disappointing oil change at a local Subaru dealer I decided to do it myself. Although the car manual recommends a viscosity of 0W-20 I decided to use 5W-30 since the temperatures in Hawaii are more towards the warm temperature range. First drive after the oil change I immediately noticed an increase in power/torque; not a lot, but very noticeable. For those that know the reputation of this car not having enough power - this was a welcome boost. I also noticed after a day of driving that my MPG increased by 0.2 MPG per the dashboard display. I suspect that number will increase as more miles are driven with this oil. My advice: switch to Mobil synthetic NOW!

Review from mobiloil.com
Helpful?20ZUIKIMS38N7192444975
May 16, 2017
1n0nly5am
5 out of 5 stars review

Use every oil change

Been using Mobil 1 5W30 in my '12 Sentra SE-R Spec V since I bought the car new. Was using the over priced Nismo oil filter for the first couple years then switched to the Mobil 1 oil filter when there was a sale for a pack of 12. The car is sitting at 106000 miles right now and have done the oil change ever 6k, give or take a few hundred miles. Still runs like she did when I first picked her up with 6 miles on the tach. Recently took it to the dyno and is making 176 horsepower at the wheel and 170lb-ft of Torque all stock. Thanks again Mobil for making a terrific product, you will have me as a life long customer for sure.

Review from mobiloil.com
Helpful?20ZUIKIMS38N7192444975
Dec 8, 2020
srcivic4342
5 out of 5 stars review

Excellent Oil

I have used Mobil 1 for over 10 years on my 2008 Honda Civic. The vehicle now has over 340,000 miles! I have tried a few oils during that time frame, and I always come back to Mobil 1. For most of the car’s life it has used Mobil 1. After using Mobil 1, the engine seems more responsive. The Mobil 1 filter also ensures peace of mind, as you can extend your oil change interval. I usually change my oil every 5,000 miles. I would be highly interested in doing a commercial for Mobil 1 once my car hits 600,000 miles!!!! Thank you Mobil 1!

Review from mobiloil.com
Helpful?20ZUIKIMS38N7192444975