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

  • Based on 1,829 reviews
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Availability: 12 left in stock
Fulfilled by Amazon

Arrives Sunday, Oct 11
Order within 7 hours and 1 minute
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Size: 5 Quart (Pack of 1)


Style: Full Synthetic High Mileage


Configuration: 10W-40


Features

  • High Mileage for engines 75,000+ miles
  • Helps extend engine life of higher mileage vehicles
  • Protects for 15,000 miles guaranteed*
  • Contains additives to help fight sludge
  • Keeps your engine running like new

Description

Mobil 1 High Mileage motor oil utilizes our signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles of all ages. Specialty components in synthetic oil extend engine life by reducing the friction that causes deposits and sludge buildup—keeping critical engine parts clean and protected for up to 15,000 miles between oil changes. Mobil 1 High Mileage motor oil meets ILSAC GF-7 standards, offering superior oxidation control, enhanced protection against pre-ignition and timing chain wear, and excellent cold-start and low-temperature performance. Mobil 1 is the 1 selling motor oil in America at retail, trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR®.

SAE J300 Viscosity Grade: 10W-40


Brand: Mobil


Liquid Volume: 160 fluid ounces


Package Information: Bottle


Vehicle Service Type: Car


Brand Name: Mobil


Manufacturer Part Number: 120771


UPC: 071924149960


Number of Packs: 1


Manufacturer: Mobil 1


Size: 5 Quart (Pack of 1)


Item Highlight: 75K+ Mile Protection | Seal Conditioner | Sludge Prevention


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


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


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Oct 11

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


  • 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

  • it seems like good oil
Size: 5 Quart (Pack of 1) Style: Full Synthetic High Mileage Configuration: 10W-40
i use this in a couple of older high millage cars and it seems to work well and keeps the engine clean. it has been a very consistent product.
Reviewed in the United States on August 13, 2026 by Stanley Kocsis

  • Might even help with small rear main oil leaks.
Size: 5 Quart (Pack of 1) Style: Full Synthetic High Mileage Configuration: 10W-40
Might even help with small rear main oil leaks. The best oil for the summer supper hot days on a W163
Reviewed in the United States on August 27, 2026 by Mark S

  • GOOD VALUE
Size: 5 Quart (Pack of 1) Style: Full Synthetic High Mileage Configuration: 10W-40
GOOD VALUE, QUANTITY, AND DEPENDABLE
Reviewed in the United States on September 25, 2026 by C N

  • 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

  • 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

  • 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

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