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Castrol Transmax DEX/MERC Automatic Transmission Fluid, 1 Gallon

  • Based on 2,256 reviews
Condition: New
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Availability: Only 6 left in stock, order soon!
Fulfilled by Amazon

Arrives Tuesday, Oct 27
Order within 11 hours and 58 minutes
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Style: Automatic


Size: 1 Gallon


Features

  • Enhanced friction durability for smooth transmission performance
  • Superior high temperature protection to effectively resist oxidation
  • Unsurpassed protection against copper corrosion
  • Broad scope of vehicle applications improves workshop efficiency and inventory management

Description

Castrol Transmax ATF/CVT Universal is a technologically advanced full- synthetic formulation designed to deliver excellent performance in most of the traditional stepped automatic transmissions and Continuously Variable Transmissions currently in use. It is blended with premium base oils and an additive package which utilizes Castrol Smooth Drive Technology. This is the first Castrol multivehicle ATF suitable for use in both step-shifting and continuously variable automatic transmissions. Transmax ATF/CVT Universal is suitable for use in vehicles manufactured in North & South America, Europe, and Asia.

Material: Molybdenum Disulfide Calcium Sulfonate


Brand: Castrol


Package Information: Bottle


Liquid Volume: 128 fluid ounces


Recommended Uses For Product: Automotive


Container Type: Bottle


Viscosity: 5w-30


Upper Temperature Rating: 175 °C


SAE J300 Viscosity Grade: 5W-30


Liquid Volume: 128 fluid ounces


Material: Molybdenum Disulfide Calcium Sulfonate


Brand Name: Castrol


Recommended Uses For Product: Automotive


Specific Uses For Product: Automatic Transmission Maintenance, Vehicle Compatibility, Performance Improvement


Item Form: Liquid


Global Trade Identification Number: 08


Manufacturer: Castrol


Unit Count: 128 Fluid Ounces


UPC: 079191335208


Number of Items: 1


Number of Packs: 1


Included Components: 1 Gallon Jug of Automatic Transmission Fluid


Item Type Name: Automatic Transmission Fluid


Model Number: 03520


Part Number: 03520


Warranty Description: 3 months


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 27

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


  • It's Red
It's trans fluid, what else can be said !
Reviewed in the United States on July 17, 2026 by Amazon Customer

  • running good
perfect! 97 k1500
Reviewed in the United States on September 22, 2026 by Howdy Yonder

  • A+
A+
Reviewed in the United States on September 21, 2026 by Uknowho

  • Perfect in the Merc 722.n Gearbox.
This stuff meets the Dexron II and III requirements my Mercedes-Porsche auto gearbox demands. Many more modern "works in anything" fluids are nothing but problems for 'vintage' euro GT cars. This one works perfectly. I'm very happy that this is still available. A few local stores stock it, but at a cost premium. Thank goodness Jeff B. had an old Mercedes, and keeps bottles of this for me in his warehouse/garage. ... show more
Reviewed in the United States on May 9, 2026 by Bob in Central Oregon

  • 2005 Honda Odyssey Touring
I used this for the transmission fluid flush on my 2005 Honda Odyssey Touring with 221k miles. Unknown when last transmission fluid change was, but it's part of Honda's maintenance schedule - so ~30-60k miles. I ran this fluid for a few weeks (~500 miles) before flushing it out and putting in the Honda OEM ATF. In the Odyssey, you cannot drain all of the fluid out the first drain (some left in cooler, lines, solenoids). The recommended total "flush" is to fill/drain 3x times (I only did 2x). On the 2x fill I used the Honda OEM ATF, since the cost is reasonable for my budget. I cannot tell a difference in shifting/drive-quality between Honda OEM ATF and this. ... show more
Reviewed in the United States on September 29, 2020 by Richard

  • Car part
Very useful.
Reviewed in the United States on February 16, 2026 by Red bug

  • Great Trans Fluid
Great stuff!
Reviewed in the United States on March 25, 2026 by Michael F

  • good oil
Works well
Reviewed in the United States on March 15, 2026 by ARCHIE RUSHIN

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