Do I Really Need to Change the Transmission Fluid?

[AliyahLynn]

Yes, you need to change the transmission fluid. Generally, it should be replaced every two years or 40,000 kilometers. Transmission fluid deteriorates and evaporates over time when working under high-speed and high-temperature conditions, so regular replacement is necessary. Failure to change it can accelerate the wear of mechanical components. Transmission fluid helps keep the gear system clean, lubricates the transmission components, and extends their service life. It is a lubricant specifically designed to maintain the cleanliness of the gear system and enhance the longevity of the transmission. It also provides effective lubrication in low-temperature conditions, reducing fluid loss under harsh operating conditions. Depending on the transmission type, transmission fluid is categorized into automatic transmission fluid (ATF) and manual transmission fluid.

[StMax]

I remember when I drove my first car, I didn't change the transmission oil on time, which resulted in severe transmission jerking and cost me a fortune to repair. Now I change the oil every 60,000 kilometers regularly, and it feels very smooth. Transmission oil is responsible for lubrication and cooling. If not changed for a long time, it turns black and sticky, and metal particles accumulate, wearing down the gears, leading to poor shifting or malfunctions. Especially for automatic transmission cars, which rely more on the hydraulic system, aging oil can easily cause problems. The manual recommends following the maintenance cycle. Don't save on this small expense—changing the oil itself isn't expensive but can prevent major repairs and extend the car's lifespan.

[NevaehMarie]

As an average car owner, I find changing transmission fluid to be an essential maintenance step. Over time, the fluid in new cars oxidizes and breaks down, losing its lubricating properties and accelerating internal component wear. If left unchanged, gear shifting may become rough or produce abnormal noises, and prolonged neglect can lead to transmission failure with costly repairs. My experience suggests following the manufacturer's recommendation, such as changing every 60,000 kilometers, or adjusting the interval based on driving habits – shorter intervals are preferable for frequent stop-and-go traffic conditions. Regular replacement with specialized fluid helps maintain vehicle performance and prevents breakdowns.

[CamilleFitz]

Having driven for many years, changing the transmission oil is definitely necessary—it's about both the car's health and your wallet. The oil has a limited lifespan, and once it deteriorates, it affects transmission efficiency, leading to fuel waste. Automatic transmission cars require extra attention because the oil drives the torque converter's operation; manual transmission oil might last longer but still needs monitoring. The worst-case scenario of not changing it is burning out the transmission core, with repairs costing tens of thousands, making the few hundred bucks for an oil change a much smarter investment. Regular maintenance is the true path to saving money.