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What does the specification model of transmission oil mean?

5 Answers
VincentMarie
07/29/25 3:11am

Different vehicle models have different transmissions. Common transmissions can be divided into four major categories: ATF, CVT, DCT, and MT. Different transmissions use different types of transmission oil. Below is relevant information: 1. There are many types of transmission oil on the market, and different grades of oil have varying effects. The American Petroleum Institute (API) has classified transmission oil performance into levels such as GL-1, GL-2, GL-3, GL-4, GL-5, and GL-6. Gear oil packaging will have corresponding level markings. 2. ATF transmission oil is automatic transmission oil, and there are many types of ATF transmission oil with different friction coefficients. Currently, widely used ATF transmission oil models include DEXRON, DEXRON-II, and DEXRON-III. The DEXRON standard is classified according to the standards of General Motors (GM).

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BlakelyLee
08/12/25 1:31pm

The specification model of transmission oil refers to the classification labels of transmission fluids, such as Dexron or Mercon. These labels help car owners identify the performance characteristics of the oil, such as viscosity, temperature resistance, and compatibility. Choosing the wrong type can easily lead to rough gear shifting, increased wear, or higher fuel consumption. Every time I service my car, I remind myself to check the correct type according to the vehicle manual. For older cars, using synthetic oil might be more convenient and can extend the lifespan of components. It's also important to buy from reputable brands and avoid cheap, unknown brands, as they may not be effective even after replacement. Regularly checking the color and level of the transmission fluid is crucial. If you notice obvious jerking during normal driving, it's time to inspect it.

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AniyahRose
10/02/25 5:29am

Transmission fluid specifications and model numbers refer to the oil standard codes, such as ATF+4 or generic brand names, which indicate its physical and chemical properties, including high-temperature protection capabilities and friction coefficients. With years of experience in maintenance, I've found many vehicle issues arise from using incorrect fluids—for instance, older models suffering gear wear due to incompatible new-spec oils. It's advisable for owners to change fluids regularly, typically every 50,000 kilometers or as per the manual, to avoid costly overhauls from delays. When purchasing, ensure the packaging label matches your vehicle model and inspect the fluid for impurities to prevent minor issues escalating into major damage.

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AylaRose
11/15/25 7:13am

The transmission oil specification model is a set of standards defined by the manufacturer, similar to an identity label for the oil, helping everyone distinguish which type is suitable for their car. For my household Japanese car, I use the JASO specification to ensure smooth transmission operation and safety performance. If you're not familiar with it, it's easy to use the wrong type, leading to increased fuel consumption or malfunctions. For regular maintenance, I note down the brand's recommended model and change the oil every two years, saving money and ensuring peace of mind. Also, pay attention to changes in the oil's color; if it turns black or becomes cloudy, it indicates the need for replacement to avoid affecting daily driving.

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MacJulianna
01/06/26 2:02am

Transmission fluid specifications are product codes, such as Dexron III, indicating the basic performance parameters of the oil, which affect transmission efficiency and lifespan. I often DIY fluid changes and buy the correct type directly from the auto shop to save money—usually costing just a few dozen bucks. The key is to check the vehicle manual carefully and not blindly trust expensive synthetic oils; standard oil works fine if it's the right type. Once, I used the wrong type in an old car and experienced rough shifting, but it was fine after correcting it. A reminder: don't delay fluid changes too long, and regularly check the fluid level and quality.

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