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Mobil 1™ High Mileage oil

Mobil 1™ High Mileage

Rated 4.6 out of 5 by 13 reviewers.
  • 2016-07-24 T12:18:56.107-05:00
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Provides unsurpassed wear protection for vehicles with more than 75,000 miles*

Mobil 1 High Mileage oils are designed to help extend engine life and prevent engine oil leaks. To help prevent wear in higher mileage engines, this advanced, fully synthetic high mileage oil features:

  • Higher base oil viscosity to help reduce leaks and provide better high temperature protection.
  • With a boosted level of seal conditioner to protect engine seals in all vehicles because over time, rubber seals can harden or shrink, resulting in oil leaks.
  • A proprietary blend of high-performance synthetic base oils

If your engine contains excessive sludge deposits due to less-than-adequate maintenance practices, Mobil 1 High Mileage synthetic motor oil can help reduce this sludge. For severe cases of engine sludge, short oil change intervals (3,000-5,000 miles) are recommended for the first two or three oil changes as the sludge reduction takes place. (In cases of engine damage that may have resulted from poor maintenance, even Mobil 1™ motor oil cannot remedy years of neglect.)

Still have additional questions, such as, “Should I use high mileage oil?” or, “Is high mileage oil worth it?” Learn more about the benefits of high mileage oils in our Car Maintenance archives. 

Please reference our Mobil 1™ Product Guide for a quick look at specifications including zinc and phosphorus, as well as manufacturer approvals for Mobil 1 motor oils.

*According to the industry-accepted Sequence IVA engine wear test.

Features and benefits

Advanced full synthetic formula

  • Provides excellent overall lubrication and wear protection
  • Outperforms our conventional high mileage oils

Extra anti-wear additive

  • Helps protect critical engine parts in high mileage engines

Cleaning additive

  • Helps to reduce the sludge and deposits that conventional oils can leave behind

Seal conditioner

  • Helps prevent leaks

Available viscosity grades

What does this viscosity mean?
  • 5W-20

    Specifications and approvals

    Mobil 1 High Mileage 5W-20 synthetic motor oil meets or exceeds the requirements of:

    • ACEA A1/B1 
    • API SL

    According to ExxonMobil, Mobil 1 High Mileage 5W-20 is of the following quality level:

    • API CF

    Technical details

    SAE Grade 5W-20
    Viscosity (ASTM D445)
    cSt @ 40ºC  50.1
    cSt @ 100ºC  8.6
    Viscosity Index  150
    HTHS Viscosity, mPa•s @ 150ºC (ASTM D4683)      2.7
    Pour Point, ºC, (ASTM D97)  -42
    Flash Point, ºC, (ASTM D92)  244
    Density @15.6ºC g/ml (ASTM D4052)  0.856

    View product data sheet for Mobil 1™ High Mileage 5W-20


  • 5W-30

    Specifications and approvals

    Mobil 1 High Mileage 5W-30 synthetic motor oil meets or exceeds the requirements of:

    • ACEA A1/B1
    • API SL

    Mobil 1 High Mileage 5W-30 is of the following quality level:

    • API CF

    Technical details

    SAE Grade 5W-30
    Viscosity (ASTM D445)
    cSt @ 40ºC  69.2
    cSt @ 100ºC  11.7
    Viscosity Index  165
    HTHS Viscosity, mPa•s @ 150ºC (ASTM D4683)      3.3
    Pour Point, ºC, (ASTM D97)  -39
    Flash Point, ºC, (ASTM D92)  230
    Density @15.6 ºC g/ml (ASTM D4052)  0.856

    View product data sheet for Mobil 1™ High Mileage 5W-30


  • 10W-30

    Specifications and approvals

    Mobil 1 High Mileage 10W-30 synthetic motor oil meets or exceeds the requirements of:

    • ACEA A3/B3
    • API SL

    Mobil 1 High Mileage 10W-30 is of the following quality level:

    • API CF

    Technical details

    SAE Grade 10W-30
    Viscosity (ASTM D445)
    cSt @ 40ºC 78.1
    cSt @ 100ºC 12
    Viscosity Index 149
    HTHS Viscosity, mPa•s @ 150ºC (ASTM D4683)     3.5
    Pour Point, ºC, (ASTM D97) -37
    Flash Point, ºC, (ASTM D92) 232
    Density @15.6ºC g/ml (ASTM D4052) 0.861

    View product data sheet for Mobil 1™ High Mileage 10W-30


  • 10W-40

    Specifications and approvals

    Mobil 1 High Mileage 10W-40 synthetic motor oil meets or exceeds the requirements of:

    • ACEA A3/B3 
    • API SN, SM, SL

    Mobil 1 High Mileage 10W-40 is of the following quality level:

    • API CF

    Technical details

    SAE Grade 10W-40
    Viscosity (ASTM D445)
    cSt @ 40ºC 95.9
    cSt @ 100ºC 14.71
    Viscosity Index 160
    HTHS Viscosity, mPa•s @ 150ºC (ASTM D4683)     3.9
    Pour Point, ºC, (ASTM D97) -33
    Flash Point, ºC, (ASTM D92) 232
    Density @15.6ºC g/ml (ASTM D4052) 0.860

    View product data sheet for Mobil 1™ High Mileage 10W-40



Show reviews
Rated 5 out of 5 by Dirty Oil Only 2000 Miles Hello Mobil 1, I have a 2003 Nissan Altima 2.5 S and it has 176,700 miles on it. I have kept my car's oil change regularly at 3,000 miles. Recently I decided to switched to synthetic oil and use Mobil 1 High Mileage 5W-30. I have read a lot of good remarks about it. Your support staff recommend that I do a staggered oil change since my car has never used synthetic oil before. He suggested to change the second oil change at 2,500 miles and the third at 3,500 miles. Then after that, at regular intervals. Anyhow, after I switched to synthetic oil and have driven 2,000 miles on this new synthetic oil, it is now time to change the oil (I know, I am changing it a bit early before 2,500 miles). Today, I changed the oil and notice that the oil is very dark with only 2,000 miles of use on the synthetic oil. Is this normal? My car's exhaust does not put out any smoke at all. Does dark oil mean that the internal engine is dirty? I am curious why with only 2,000 miles of use the oil is already dark. I would appreciate your expertise explanation and look forward to your feedback. Thank you for our time. Thanks, Joe MaCook April 2, 2016
Rated 5 out of 5 by Proven. I have a 09' Altima with 110K miles on it. I drive and sit in Boston traffic every single day of my life and Mobil 1 High Mileage is all I have used since my car turning 75K miles. Prior to the High Mileage, I used regular full synthetic Mobil 1 5w-30. In all honesty, my car sounds great. Very quiet, smooth, people often comment on it, especially being a 4 cylinder that takes a beating with Boston traffic. I change my oil myself every 5,000 miles and it still looks good. It is impossible to go wrong. Sick with Mobile 1 High Mileage with a Mobil 1 Extended Performance filter and you'll be more than fine. Be good to your car and your car will be good to you for a long time. After all, who likes a car payment? February 15, 2016
Rated 4 out of 5 by Installed in 98 Grand Marquis It seemed to help with oil loss(1 qt/1500 now 1 qt/2000) but I'm replacing lost oil with 5W30 instead of 5W20. Valve cover gaskets have very, very slight weep and I'm not sure if the oil made a difference.May need more time. Oil looked a bit dirty after 2000 miles. 5W30 was originally speced for this car and after all these miles it is probably a good idea. I'm concerned though it is only an SL oil and it don't meet Ford specs, nevertheless I'm sure it is a good product. Car averages about 22Mpg, about the same as the OEM Ford Oil. Does not increase or decrease mileage. Informally I can say the engine feels extremely smooth and relatively powerful when idling, passing, accelerating, etc. It ran fine with the the other oil but I can tell a difference, almost like a new vehicle. Seems to start easier as well, even on a cold morning(25 deg) it is running after one click. Car has 150K. November 27, 2015
Rated 5 out of 5 by Long relationship with Mobil 1 I've used Mobil 1 on my Mazda protege at 65,000 miles to 450,000. Ford Explorer sport trac lasted 350,000 then sold. 2008 Mazda 3 from 10,000 to 100,000. My son's Mazda speed 3 up to 100,000 miles so far. My brother's Mazda 636 lasted 430,000 miles. I've raced 1000cc and 600cc motorcycles for the last 5 years with Mobil 1 oil and let me tell you I'm a big fan, I've had to look into a rebuilt engine for a race and all parts were excellent condition, every vehicle I own I use Mobil 1, it's definitely worth my investment. September 6, 2015
Rated 5 out of 5 by Unsurpassed protection-and trusted I have used Mobil 1 High Mileage in two Land Rover Discovery Series II ('99 & "01), with great success. I now have a 2002 Toyota Land Crusier and will be using it as well for the same reasons: viscosity, protection, anti-wear. Unfortunately, other oil companies use creative advertising to try to earn my business. Case in point is Valvoline. Their website states their full synthetic high mileage motor oil is "Formulated with...40% more anti-wear film than Mobil 1*. .... *Based on anti-wear film generated in Cameron Plint Test, Valvoline Full Synthetic with MaxLife Technology™ 5W-30 vs Mobil 1 5W-30". Well, Valvoline is comparing their fully synthetic high mileage motor oil not to Mobil 1 High Mileage, but to standard Mobil 1. Why not compare apples to apples, or mention that the Valvoline oil flows slower in the centistokes test than Mobil 1 High Mileage? When you are the synthetic oil standard, you are a target, but this is just rediculous. Mobil 1 motor oil protected my engines, and Mobil 1 lubricants protected my differentials, transfer cases, all of it, for years. I trust it and it has never failed me. 'Nuff said. October 6, 2015
Rated 1 out of 5 by Made My RMS Leak Worse I was using Valvoline MaxLife before switching to M1HM. The RMS (Rear Main Seal) was leaking just a little bit. A friend recommended M1HM and he stated it would most likely stop the leak. Well, the leak has gotten worse since using M1HM. I am switching back to Valvoline MaxLife June 20, 2015
Rated 5 out of 5 by Good Stuff !!! I bought my '99 4wd, 4.0 Ranger in 2001 with 26,000 miles and I can't even start to tell how many fishing trips, deer and hog hunting excursions this truck has been involved in. This truck has had a steady diet of "regular" Mobile 1 for the better part of the next 134,000 miles with no problems. Changed the oil every 5-6 thousand miles. Oil comes out a little stained but that's normal though. Outside of the normal maintenance there has been no oil related issues, EVER !! Truck has no leaks and uses no oil. I have recently started using the High Mileage Mobile 1 and all is well within my engine. This Mobile 1 is GREAT oil, a little expensive, but compared to a new engine, it's a real bargain. I can"t imagine ever "running" anything else in my truck..Looking forward to another 160,000 miles or more of fishing and chasing deer and hogs.. Thanks for a TREMENDOUS product !!! June 19, 2015
Rated 5 out of 5 by made it over 300,000 miles I bought a used truck( 99 Chevy Silverado 4.8 liter) that the owner used Mobil 1 . At 125,000 mile switch over to high mileage. Now I have over 300,000. mile and still running strong.... June 2, 2015
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