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Mobil 1 High Mileage Full Synthetic Motor Oil 10W-40, 5 Quart

  • Based on 1,767 reviews
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Availability: In Stock.
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Arrives Wednesday, Aug 26
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Size: 5 Quart (Pack of 1)


Style: Full Synthetic High Mileage


Configuration: 10W-40


Features

  • Mobil 1 High Mileage full-synthetic motor oil 10W-40 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.*
  • Utilizes Mobil 1s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness
  • Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
  • Mobil 1 is specially formulated to help remove sludge and lower engine temperatures

Description

Give your higher mileage engine the care it deserves with Mobil 1 High Mileage full-synthetic motor oil 0W-20. This formula utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles with over 75,000 miles. Mobil 1 High Mileage motor oil extends engine life by reducing friction and preventing deposits and sludge buildup—keeping critical engine parts clean and protected for up to 10,000 miles between oil changes. Mobil 1 helps to keep your engine running at lower temperatures and is proven to cool engine temperatures by over 10%. Mobil 1 High Mileage full-synthetic motor oil 10W-40 also helps control oxidation to prevent oil breakdown and is recommended by ExxonMobil for all types of modern cars, SUVs, light vans, and light trucks—including those with high-performance, turbocharged, supercharged, multi-valve, or fuel- injected engines. Mobil 1 is America’s 1 selling synthetic motor oil brand at retail, trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR®. (Protects for up to 10,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. Compared to conventional oil. Based on proprietary engine testing–results may vary. Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ PCMO full-synthetic/ 52 weeks ending September 30, 2023)

SAE J300 Viscosity Grade: 10W-40


Brand: Mobil


Liquid Volume: 160 fluid ounces


Package Information: Bottle


Vehicle Service Type: Car


SAE J300 Viscosity Grade: 10W-40


Container Type: Bottle


Compatible with Vehicle Type: Car


Viscosity Level: Medium to High


Automotive Fit Type: Universal Fit


Liquid Volume: 160 fluid ounces


Brand Name: Mobil


Manufacturer Part Number: 120771


UPC: 071924149960


Manufacturer: Mobil 1


Size: 5 Quart (Pack of 1)


Unit Count: 160 Fluid Ounces


Item Type Name: Full Synthetic Motor Oil


Model Number: Mobil 1 High Mileage


Manufacturer Warranty Description: Limited Warranty - Please contact manufacturer for full details


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Aug 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Excellent for price
Size: 5 Quart (Pack of 1) Style: Full Synthetic High Mileage Configuration: 10W-40
Good oil
Reviewed in the United States on June 28, 2026 by mickey

  • use it in my 93 chevy
Size: 5 Quart (Pack of 1) Style: Full Synthetic High Mileage Configuration: 10W-40
My 1993 Chevy K1500 with a 350, 217k as of writing this, loves this oil. I have a minor oil leak at the rear main or back of oil pan. really can't tell. I have tried other 10w40's in high mileage flavor and only 2 brands will stop the leak. this one and another one. This one is the same price nearly as the other one and I get the added benefit of full sythetic. It keeps great oil pressure and doesn't leak. I haven't found any other full sythetic 10w40 that isn' a bouique oil and outrageous price. I will continue to buy this. ... show more
Reviewed in the United States on July 4, 2026 by Shaun

  • Better price than the big box stores
Size: 5 Quart (Pack of 1) Style: Full Synthetic High Mileage Configuration: 10W-40
I bought this so that I wouldn't have to go without during the current shortages. I have a leaky 50 year old rope seal for the rear main and its like a magic trick. The oil goes in. It disappears. Where does it go? Nobody knows. And my car never gets rusty underneath!
Reviewed in the United States on June 5, 2026 by sgath92

  • Great product
Size: 5 Quart (Pack of 1) Style: Full Synthetic High Mileage Configuration: 10W-40
My husband has worked in the car industry for over 40 years. This is the only oil he will use for our cars. We keep them until they are very, very high mileage, and they have all continued to run great. The last car we sold had over 300,000 miles on it. It was still running great, but we felt like it was time to let it go to someone else. We are currently over 150,000 miles on each car and plan on keeping them for a number of years more. If you use a good product and take care of your car, it will take care of you for a long time. ... show more
Reviewed in the United States on February 14, 2026 by GM

  • Good Service and Quality
Size: 5 Quart (Pack of 1) Style: Full Synthetic High Mileage Configuration: 10W-40
Arrived safe, and promptly. have used product before. so should be fine.
Reviewed in the United States on June 4, 2026 by Amazon Customer

  • Great value!
Size: 5 Quart (Pack of 1) Style: Full Synthetic High Mileage Configuration: 10W-40
Great value! A lot cheaper than buying in store. Arrives carefully packaged so there’s no breaks or leaks. Will add years to your car.
Reviewed in the United States on June 4, 2026 by Miss Thang

  • Quality and price
Size: 5 Quart (Pack of 1) Style: Full Synthetic High Mileage Configuration: 10W-40
Same as Walmart, but delivered to my house. It took two tries to get the 40 weight they kept sending me 20 weight. Finally got this one right and paid an extra $1 for the second bottle from Walmart instead of chancing another wrong delivery. Second order went as planned, great price and product, have used on all my vehicles over the years. ... show more
Reviewed in the United States on June 22, 2025 by Dave P

  • The best oil there is, even NASCAR boys use it.
Size: 5 Quart (Pack of 1) Style: Full Synthetic High Mileage Configuration: 10W-40
I love this brand, this is the best out of the market for deals with high mileage motors. Perfect for my 2001 Dodge ram 1500 pick up.
Reviewed in the United States on July 22, 2026 by Allan Cameron

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