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Castrol Transmax High Mileage Automatic Transmission Fluid, 1 Gallon

4.8 4.8 out of 5 stars 5,435 ratings

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High Mileage
1 Gallon

Purchase options and add-ons

Brand Castrol
Package Information Jug
Liquid Volume 128 Fluid Ounces
Item Form Liquid

About this item

  • Engineered to help alleviate typical problems experienced by transmissions with over 75,000 miles such as leaks and rough shifts
  • Greater frictional durability provides superior transmission performance
  • Additional seal conditioners to prevent or help stop leaks
  • Extra cleaning agents to reduce varnish and sludge formulation
  • Protects against clutch wear and restores smooth shifting
  • Greater frictional durability provides superior transmission performance
  • Meets or Exceeds General Motors DEXRON-IIIH Requirements; Meets or Exceeds Ford MERCON Requirements
  • Exceeds all passenger car and light truck manufacturer’s warranty requirements for vehicles, transmissions or power steering service where a DEXRON-IIIH or MERCON type ATF is specified
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$18.88 ($0.15/Fl Oz)
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From the manufacturer

Castrol 03518 Transmax ATF Green High Mileage Transmission Fluid

Automatic transmissions are now more complex than ever, placing ever-greater demands on auto transmission fluids. In fact, the automatic transmission is perhaps the most complicated mechanical component in an automobile. The automatic transmission combines electrical & mechanical systems, hydraulics and computer processors to smoothly shift through the gears and transfer engine power to the drive wheels.

The one component of the entire system that’s critical to all of these parts working properly together is the Automatic Transmission Fluid, or ATF. It acts as a hydraulic fluid, to engage clutch packs & shift the gears. It acts as a corrosion inhibitor and wear protection for the Planetary Gear sets. It has to flow easily from minus 40 degrees Fahrenheit to nearly 400, even in fine valve assemblies.

Product Description

Castrol Transmax High Mileage Automatic Transmission Fluid is a premium ATF specially formulated for maximum transmission life in high mileage vehicles. Castrol Transmax High Mileage ATF has been engineered to help alleviate typical problems experienced by transmissions with over 75,000 miles such as leaks and rough shifts. Newer vehicles will also benefit from this technologically advanced formulation.
The most applications amongst high mileage transmission fluids and suitable for use in vehicles as indicated: Acura— ATF-Z1 (except in CVTs), Chrysler— ATF+3, ATF+2, ATF+ , Ford— MERCON , General Motors— DEXRON- III H, II-D, II, DEXRON; 9986195; Type A, Suffix A (TASA), Honda— ATF-Z1, ATF DW-1 (except in CVTs), Hyundai— SP-II, SP-III, Infiniti— Matic-D, Matic-J, Matic-K, Lexus— Type T, T-III, T-IV, Nissan— Matic-D, Matic-J, Matic-K, Toyota— Type T, T-III, T-IV, Volvo— All specifications

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Castrol Transmax High Mileage Automatic Transmission Fluid, 1 Gallon


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Castrol Transmax High Mileage Automatic Transmission Fluid, 1 Gallon
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Price-21% $18.88
List:$23.99
$29.95$41.78$23.94$60.79$13.98
Delivery
Get it as soon as Tuesday, Apr 2
Get it Apr 3 - 8
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Value for money
4.7
4.7
5.0
4.5
Mileage
4.7
4.7
5.0
4.3
Longevity
4.6
4.7
5.0
Sold By
Amazon.com
Blauparts
Amazon.com
Amazon.com
Ultra1Plus
Amazon.com
liquid volume
128 fluid ounces
1 liters
1 gallons
1 gallons
1 gallons
form
Liquid
Liquid
Liquid
Oil
weight
1 pounds
14.92 pounds
24 ounces

Looking for specific info?

Customer reviews

4.8 out of 5 stars
4.8 out of 5
5,435 global ratings

Customers say

Customers like the noise, value, and quality of the machine lubricant. For example, they mention it eliminates the whine, and is good value for money. Customers are also impresseded with the fluid, saying it's one of the best CVT fluids out there. That said, opinions are mixed on leakage.

AI-generated from the text of customer reviews

270 customers mention262 positive8 negative

Customers are satisfied with the quality of the machine lubricant. They mention that it works well, gives good results, and has no issues. Some say that it helps improve the operation of their CVT. Overall, most are happy with their purchase and recommend it to others.

"Same quality as parts houses and at a lower price" Read more

"...I am very impressed that it has helped improve the operation of our CVT...." Read more

"Works as designed." Read more

"Used this stuff on my Honda with CVT, no issues." Read more

241 customers mention235 positive6 negative

Customers are satisfied with the value of the machine lubricant. They mention that it works great for the price, is much cheaper than using Nissan trans fluid, and is affordable enough to routinely change.

"Same quality as parts houses and at a lower price" Read more

"Good price compared too others." Read more

"Cheaper than local stores" Read more

"Works great for the price." Read more

109 customers mention92 positive17 negative

Customers like the shifting of their vehicles after using the lubricant. They mention that their car now shifts much better, has no vibration, and is driving smooth again. Some customers also mention that the CVT is transitioning between ratios much smoother. Overall, most are satisfied with the product's performance and recommend it to others.

"...used this all the time in my Toyota's. Shifts like a dream daily driver. I always buy this brand high mileage version never any issues" Read more

"...sure if fluid or filter was ever done but the CVT is transitioning between ratios much smoother now...." Read more

"...transmission fluid and a bottle of red lubegard and both preform so much better and shift better...." Read more

"...stand up to whatever demands are placed on it -- cool running, smooth operation, and with no lag, slippage, or hesitation, regardless of load or..." Read more

50 customers mention44 positive6 negative

Customers like the fluid. They mention it's an excellent transmission fluid, CVT fluid, and power steering fluid. Some say it'll improve over OEM CVT and is a great replacement for the factory fluid.

"It’s good fluid!" Read more

"Perfect transmission fluid for high mileage GM vehicles." Read more

"...transmission burn it.... no, but seriously burn it..... the fluid is definitely good if you have a CVS trans you already know the struggle" Read more

"...using this CVT fluid for over a year now..this is the best fluid on the market for CVT...." Read more

20 customers mention14 positive6 negative

Customers like the noise of the machine lubricant. They mention that it eliminates the whine they were getting from their CVT transmission. The transmission sounds and feels smoother, and the whining when they accelerate stopped.

"...The car stands at close to 120K miles now. The CVT is still smooth without whinny sound during hard acceleration above 3800RPM...." Read more

"...I wanted to update that the CVT whine is gone. took a 2-hour drive to get good and warm but no whine like before. CVT is nice and quiet...." Read more

"...AZ to Dana Point, CA and return -- demonstrated smooth, quiet transmission operation, with no lag, sluggishness, or hesitation when the..." Read more

"...No shudder, no hunting, no slipping and much quieter. I’m quite surprised and I hope I bought myself some time in the QX. Great product so far." Read more

11 customers mention11 positive0 negative

Customers are satisfied with the performance of the lubricant. They mention that it improves the transmission and acceleration. They also say that it's great for vehicles with high mileage and that the car drives like it'll be new again.

"...No leak since and driving Like a champ. Easy cheap fix." Read more

"...I noticed my trany is shifting much smoother and I'm even getting better gas mileage...." Read more

"...change. Noticeably less slip. Low speed shudder (belt slip?) eliminated. Shifting smoothed to the point of becoming unnoticeable...." Read more

"...Right away I noticed smoother shifts and about 1mpg better mileage. Not sure on the longevity yet but will post on that later." Read more

10 customers mention7 positive3 negative

Customers like the temperature resistance of the lubricant. They mention that it runs cool, has excellent resistance to temperature shear, and has better resistance to burning in heated environments.

"...Transmission temperatures remained cool (170-180 F.) on long, uphill grades and high outside air temperatures (100-110 F.) UPDATE #2: January..." Read more

"...my Mazda3 5-sp AT -- the transmission operates more smoothly, no jerks when cold (unlike my experience with Mobile1 ATF)...." Read more

"...to synthetic because it lasts longer and has better resistance to burning in heated environments such as an automatic transmission." Read more

"...and nearly 140k and I was having HORRIBLE loud wining, studdering, overheating, limp mode, slipping, power loss you name it on the highway so I..." Read more

28 customers mention13 positive15 negative

Customers are mixed about the leakage of the machine lubricant. Some mention that it works perfect with no leakage, while others say that it leaks a little bit on arrival.

"...During the spill when the engine is running, the CVT fluid was just spouting out the canister housing which you can see from the bottom of the..." Read more

"...Looks like the prior owner never bothered... very easy to drain the fluid but the drain bolt was a bit stubborn, had to use my impact driver to..." Read more

"...Drove it about 10 miles. Drove fine but I did have a small leak from pan...while engine still hot I re-tightened bolts with nut driver...." Read more

"Arrived on time. In perfect condition. No leaks on any of the bottles.Super convenient to order this online. As atf-f has become difficult to find" Read more

Saved enough money to buy an extra quart at the store
5 Stars
Saved enough money to buy an extra quart at the store
I have not had any problems so far but wanted to share the different style bottles in case anybody was curious and surprised me. I needed an extra quart so I got one from walmat on the left (wide neck, temper seal), the amazon bottles on the right (narrow neck, no temper seal). Both say they are made in the USA with domestic and imported ingredients.
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Top reviews from the United States

Reviewed in the United States on January 18, 2024
Style: Automatic +4Size: 1 Quart - 6 PackVerified Purchase
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Top reviews from other countries

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Manuel Alejandro
5.0 out of 5 stars Aceites
Reviewed in Mexico on February 19, 2024
Style: Import AutomaticSize: 32 Ounce (Pack of 1)Verified Purchase
Ricardo
5.0 out of 5 stars Altima 2011
Reviewed in Mexico on July 20, 2023
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Figros Servicio
5.0 out of 5 stars For conventional philosophy.
Reviewed in Canada on March 14, 2023
Style: Automatic +4Size: 1 Quart - 6 PackVerified Purchase
Eduardo S.
5.0 out of 5 stars Buen producto
Reviewed in Mexico on September 13, 2022
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joel roberge
5.0 out of 5 stars bonne huile
Reviewed in Canada on July 14, 2022
Style: AutomaticSize: 1 Quart - 6 PackVerified Purchase