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Mobil

Mobil 55221 3309 Automatic Transmission Fluid - 1 Quart

  • Based on 837 reviews
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Availability: 15 left in stock
Fulfilled by Amazon
Arrives Monday, Sep 28
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Size: 1 Quart


Features

  • Excellent lubricating characteristics for quiet operation and smooth shifting in approved transmissions
  • Controlled friction properties for smooth and efficient transmission of power across all normal temperature ranges
  • Helps to control transmission shudder and provide excellent vehicle drivability
  • Helps to extend transmission life based on excellent wear control
  • Long fluid life based on excellent oxidation resistance

Description

Mobil ATF 3309 is an exceptionally high performance lubricant that meets original equipment manufacturer's specifications for use in certain slip- controlled lock-up automatic transmissions. Mobil ATF 3309 is recommended for use in transmissions requiring fluids of JWS 3309 or GM 9986195 quality levels. It is also recommended for service fill applications where Toyota T-IV or T4, T-III or T3 are called for. Please refer to the owner's manual for proper fluid requirements. The unique formulation of Mobil ATF 3309 is designed to provide excellent lubrication of transmission in specified slip- controlled lock-up automatic transmissions. These outstanding performance capabilities translate into significant operational benefits, including: Excellent lubricating characteristics for quiet operation and smooth shifting in approved transmissions, controlled friction properties for smooth and efficient transmission of power across all normal temperature ranges, helps to control transmission shudder and provide excellent vehicle drivability, helps to extend transmission life based on excellent wear control, long fluid life based on excellent oxidation resistance, excellent viscosity stability (high viscosity index) to help assure adequate lubrication without excessive thinning in severe high-temperature service or thickening at low starting temperatures, resistance to foaming, super protection against rusting and corrosion, compatibility with synthetic rubber seal materials. Automatic transmissions should be checked for proper fluid levels at regular intervals, and the fluid should be changed at manufacturer recommended intervals. However, this may vary due to your vehicle's operating condition. Some manufacturer's recommend more frequent changes of transmission fluid under severe driving conditions, such as heavy traffic, hot weather and trailer pulling.

Material: Synthetic Oils


Brand: Mobil


Package Information: Bottle


Liquid Volume: 330 fluid ounces


Item Weight: 2 pounds


Container Type: Bottle


Liquid Volume: 330 fluid ounces


Item Weight: 2 pounds


Material: Synthetic Oils


Brand Name: Mobil


Recommended Uses For Product: Transmission Fluid


Specific Uses For Product: Transmission Fluid


Item Form: Liquid


Global Trade Identification Number: 19


Manufacturer: Mobil 1


Unit Count: 32 Fluid Ounces


UPC: 071924252219


Number of Items: 1


Number of Packs: 1


Model Number: 55221


Part Number: 55221


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 28

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View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Ultimate Protection and Unbeatable Bulk Value for the DIYer
Size: 1 Quart (Pack of 12)
As a dedicated DIY mechanic, I trust Mobil 1 synthetic products implicitly, and their 3309 ATF is no exception. This 12-quart pack is the only way to buy this fluid if you handle your own maintenance, offering both the highest quality protection and fantastic cost savings over purchasing single quarts at the auto parts store. The synthetic formula is where this fluid truly shines. After switching to Mobil 1, the transmission in my vehicle shifted noticeably smoother and quieter, especially during cold starts. It provides superior thermal stability, which is essential for protecting the transmission during heavy towing, hot climates, or stop-and-go traffic. It gives me peace of mind knowing the fluid is protecting critical internal components under the harshest conditions. The convenience of the 12-quart case is perfect. Whether you're doing a full fluid exchange or just a pan drop and refill, having the necessary volume on hand prevents frustrating last-minute runs to the store. This specific formula meets key manufacturer specifications and is a direct substitute for much more expensive dealer-branded fluids. If your vehicle calls for a high-quality 3309-spec fluid, this is the best protection you can buy in the most convenient package. ... show more
Reviewed in the United States on October 27, 2025 by PapaKnowsStuff
    • Right price, right stuff!
Size: 1 Quart (Pack of 12)
Have been running this in AISIN AS69RC for a few years now with no issue. Fluid looks fine on factory flushes, trans doesn't overheat, shifts perfect (well, after being flashed with an update at the dealer, but that had nothing to do with fluid). Don't wait your money on the stuff from MOPAR/FCA, it's a marketing gimmick. Plenty of people running this and it does just fine. ... show more
Reviewed in the United States on October 17, 2025 by Chelsea.
    • Well worth the money
Size: 1 Quart (Pack of 12)
You can absolutely trust this brand and supplier
Reviewed in the United States on June 4, 2026 by Robert Wilhite
    • The real deal
Size: 1 Quart (Pack of 12)
Review Image by Amazon Customer
I drained and filled 15 qts of Mobile 1 JWS 3309 in a 2007 Volvo XC90 V8 with 197,000 miles. A week or two before this, I had done 3x drain and fills (about 9 qts) of MaxLife ATF in an attempt to cure a transmission shudder between 3rd and 4th. Maxlife did not cure the shudder, but in fact made it significantly worse after a week or two of driving. The shudder was so bad you could only drive the car in manual mode and had to keep the RPMs above 2000. Once I got home from the road trip I did the previously mentioned Mobile 1 drain and fill. It massively improved the shudder and overall smoothness of the trans. A slight shudder remained between 3rd and 4th (this has been normal behavior for the last year even on Aisin fluid specific to the TF80SC trans), so I also added 1 packet of ATP AT-222 shudder eliminator. The transmission is now buttery smooth. I legitimately feel like I am driving a new car. This is wonderful stuff. And I hate to sound like a forum expert, but the debate between Maxlife vs JWS 3309 is warranted. DO NOT PUT MAXLIFE ATF FLUID IN A VOLVO XC90 TRANS. ... show more
Reviewed in the United States on March 1, 2023 by Amazon Customer
    • Mobil JWS3309, Automatic Transmission Fluid, for Volvo's
Size: 1 Quart (Pack of 12)
Been using this Mobil Specification JWS3309 Automatic Transmission Oil required for Volvos, in this case a 2006 Volvo S40, with 150K miles. I change the fluid once a year by draining the pan, no gasket or pan removal since this is a sealed transmission. Even though Volvo says the fluid doesn't require changing, rest assured the fluid oxidizes and turns black with all that grime from constant metal friction and heat generated by many miles of usage. For a complete transmission flush, drain the pan, about 4qts. and refill through the transmission dipstick tube, with a plastic tube hand pump, the same amount as removed. Run the motor a few minutes and cycle by repeating this process FOUR times until all 12 qts. in the package are used up. Before the last top-off I also add and highly recommend a bottle of Prolong Automatic Transmission Treatment. Through the years I have had no problems, no leaks, no smoke, no hesitation, in fact the motor and transmission runs good as new. This Mobil 3309 ATF is pure mineral based oil, not semi-synthetic. This is NOT MOBIL 1, which is a pure synthetic ATF and is NOT compatible with JWS3309 specifications like the regular Mobil 3309. STOP confusing and using Mobil 1 which this oil is NOT, only the brand name. Several companies now make ATF that is JWS3309 specific, as required by Volvo. I have used and highly recommend, this regular Mobil 3309 for many years with no problems, read your owners manual, using anything else is at your own risk. ... show more
Reviewed in the United States on March 26, 2015 by Robert Works
    • Ion 3
Size: 1 Quart
Great
Reviewed in the United States on September 9, 2026 by Herbert grimes
    • Toyota A650E shifting correctly. Too expensive.
Size: 1 Quart (Pack of 12)
This appears to not only be compatible with Toyota T-IV fluid...I believe it's exactly the same stuff. The Toyota T-IV bottle and label is literally identical, just different color and logo. I used this in an early 2000s Toyota with A650E transmission that was working properly to begin with. After a full fluid/filter change - it's still working correctly...but it's a nicer shade of red, now. ... show more
Reviewed in the United States on September 8, 2023 by turbo54
    • Mobil 1 ATF 3309 Top quality oil fair price.
Size: 1 Quart (Pack of 12)
Changed transmission fluid in my 2012 Mazda 5 with 65,000 miles. Transmission had no issues. Did change as preventative maintenance. Manual called for Mazda m-v M5 fluid. or (JWS 3309). So choosing Mobil 1 at half the price was pretty easy. I think $86 for 12 qt. I used 8 qts. to flush with a new filter ... show more
Reviewed in the United States on August 28, 2025 by Larry Rusnak

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