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Customer reviews for Mobil 1 FS 0W-40 Synthetic Motor Oil 1-quart bottles, 6-pk for
Mobil 1 FS 0W-40 Synthetic Motor Oil 1-quart bottles, 6-pk
4.9 out of 5 stars
stars
262 ratings97 reviews
  1. 5 stars94% (247)
  2. 4 stars4% (11)
  3. 3 stars1% (2)
  4. 2 stars0% (0)
  5. 1 star1% (2)

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Showing 31-40 of 97 reviews
Nov 20, 2016
Reviewer name: Squalle
5 out of 5 stars
5 out of 5 stars review

MBUSA

Anyone that is is driving MBUSA anywhere in the world,i tell you to stick to mobile 1 engine oil cos they work well.I leave in Nigeria and the temperature of the sun is so high that the oil keeps the engine of my MBUSA normal and runs smooth. The european knows how to make a car run for a long by using mobile 1 engine oil.MOBILE 1 IS THE BEST engine oil so far both normal,performance and racing cars. I dont see any oil that can beat Mobile 1.

Review from mobiloil.com
Helpful?4CCC9NHOGLZR7192496989
Apr 2, 2020
Reviewer name: CazS.
5 out of 5 stars
5 out of 5 stars review

300,000+ miles and going

I purchased my Jetta new in 2011. I change my oil every 10,000 regularly using only Mobil 1, 0W-40 and I am at 310,000 miles without any issues with my engine in all that time. I plan on going to 400,000+ miles. If I ever buy and new car I will definitely use Mobil 1 for that one as well.

Review from mobiloil.com
Helpful?4CCC9NHOGLZR7192496989
Apr 7, 2025
Reviewer name: JTRuth
5 out of 5 stars
5 out of 5 stars review

Know this

This oil meets Mercedes specifications for 229.5 oil. I am not a chemical engineer and I don’t own a multi million dollar lab for the formulation testing and evaluation of engine oils. In addition Mercedes Benz has tested and evaluated this oil and approved it. I am not knocking other oil companies and I am sure they make fine products. However many high end cars come from the factory with Mobil one in their cars. Do you really these manufacturers wouldn’t put a better product in their cars if they could find it. For overall best performance I stick with the proven product and that is Mobil One. I am not going to try to out guess Mercedes Benz, Bentley, Porsche, or Corvette among others. You aren’t going to beat a man at his own game.You can use this product with complete confidence in its performance. Just use the correct product for you engines specifications is recommended by the manufacturer. Don’t get any brilliant ideas on your own and you’ll be happy.

Review from mobiloil.com
Helpful?4CCC9NHOGLZR7192496989
Aug 6, 2019
Reviewer name: Lu811
5 out of 5 stars
5 out of 5 stars review

Perfect performing oil

I have been using this oil for 6 years in 5k mile intervals and it’s been amazing. The weight is perfect for Florida weather but also performs really great in the cold. I’ve worked in a dealership with 5 European brands all of which use 0W-40 for specific cars. Highly recommend the product to anyone looking to use it on their own car.

Review from mobiloil.com
Helpful?4CCC9NHOGLZR7192496989
Nov 9, 2016
Reviewer name: tonye320
5 out of 5 stars
5 out of 5 stars review

Excelent Oil!

I've been using Mobil 1 0w40 on my 2003 Mercedes E320 since the day I bought it and currently at 259,000 miles the engine still runs great, doesn't burn or leak a single drop of oil and doesn't have any ticking noise. Last month i checked the cylinders with a borescope and to my surprise the crosshatches from the factory were still visible on the cylinder walls! Proof of a very superior oil! Here's to another 100,000 miles!

Review from mobiloil.com
Helpful?4CCC9NHOGLZR7192496989
Aug 2, 2017
Reviewer name: fahrenheit123
5 out of 5 stars
5 out of 5 stars review

I run this in all my euros

I feel that if this oil is good enough to be an OEM oil for Mercedes I can run it in my VWs. I have ran this oil in 5 of my Volkswagens (2 with over 200K), 3 Mercedes(1 with over 300K), 4 other cars that I maintain for friends and family and have always had good luck with this oil. I run 5K intervals on my turbocharged cars and 10K on my NA Mercedes and VWs and have never had issues in terms of engine wear or oil consumption.

Review from mobiloil.com
Helpful?4CCC9NHOGLZR7192496989
Mar 22, 2024
Reviewer name: Shim
5 out of 5 stars
5 out of 5 stars review

Mobil 1 FS 0w-40 for MB S320 is the BEST

Always used this oil since new now have 275k miles. Engine is clean internally as when new. No external leaks. No loss of one drop between changes. Engine runs and sounds as NEW. This product is the best and will assist me in reaching my goal of at least 500k miles.

Review from mobiloil.com
Helpful?4CCC9NHOGLZR7192496989
Aug 26, 2016
Reviewer name: winturbine
5 out of 5 stars
5 out of 5 stars review

Mobile 1 proven longevity

I am an owner that only worries about my engine while I own my car. Reading an article about Mobile 1 (100,000 mile test with no oil change when introduced) I decided to only change oil myself every 100,000 miles. I did this thinking I would sell the vehicle before I changed oil. If I went over so be it as I added new oil as needed. The 1st car was a1960 283cu-inch Chevy Biscayne (Mobile 1 intro 1974) sold running good with original Mobile 1 in 2016 with 100,000 plus 12,000 speedo roll over miles. The 2nd car was a 93 Mazda MPV, purchased 2001 with 200,000 miles, filled with Mobile 1, then instructed my daughter to only add Mobile 1 when low and never let anyone change the oil. It was running great at 300,000 miles when a deer hit her and insurance totaled the car. New 97 Dodge caravan running well at 85,000 when traded for new 2005 Dodge caravan still in use and running well at 86,000 miles. Used 1996 Toyota Tacoma truck purchased 1999 (22,000 miles) still running well at 84,000 miles. Mobile 1 installed at acquisition and no oil change after that.

Review from mobiloil.com
Helpful?4CCC9NHOGLZR7192496989
Aug 12, 2016
Reviewer name: Driver
5 out of 5 stars
5 out of 5 stars review

I have use Mobil1 since 1986 in my Volvo engine and it is the only oil that i can accept to my car. Under oil cap and under valve cover, i can see the very clean, very shine engine. No any sludge, and no dirty. Engine is clean like new. My engine have more than 372000 miles behind, and it still works very well. No leaks, no problems with valves, no emission problems. Even when cold start, engine does not sound bad. So this is oil that i can trust, every day, cold or hot temprature.

Review from mobiloil.com
Helpful?4CCC9NHOGLZR7192496989
Feb 6, 2018
Reviewer name: happyvw
5 out of 5 stars
5 out of 5 stars review

Immediate increase in fuel savings

Was using CAM2 5w40, but it's performance was average, but better than the Castrol 5w40 in some respects - the CAM2 didn't get black as fast and didn't burn-off as quick as the Castrol. I evacuated all old oil and added the Mobil 1 0w40. The car started smoother, felt more responsive and mpg gauge was incredible! I was getting very good mileage - much higher mpg than what I was getting after a fresh oil change with the other oils I was using.

Review from mobiloil.com
Helpful?4CCC9NHOGLZR7192496989