The Importance of Changing Fluid in Sealed Transmissions
Sealed transmissions might seem like a hassle-free solution, but they do require regular maintenance. The oil inside does degrade over time and is critical for proper functioning and longevity.
Understanding the Nature of Transmission Oil
It's important to note that the oil in sealed transmissions is not the same as engine oil. These fluids are specifically designed to lubricate and cool the gears, clutches, and other internal components of the transmission. Over time, this oil will degrade due to heat, wear, and contaminants. This degradation can lead to decreased performance and even complete failure of the transmission.
The Benefits of Regular Maintenance
Many argue that changing the transmission fluid and filter can be beneficial. In fact, changing the fluid and filter at regular intervals, such as every 30,000 to 50,000 miles, can significantly extend the life of your transmission. Regular fluid changes can remove contaminants, keeping the transmission clean and properly lubricated, which is crucial for maintaining performance and reliability.
Expert Opinions and Recommendations
Several experts recommend regular fluid changes to ensure the best performance and longevity of the transmission. For example, some recommend changing the transmission fluid every 50,000 kilometers (31,000 miles). If you neglect this maintenance, your transmission may not last as long as you would like, and you may experience issues such as slippage, harsh shifts, and even complete failure.
The Consequences of Neglecting Transmission Fluid Changes
According to Richard Widman, a prominent automotive expert, not changing the transmission fluid after 120,000 miles can lead to serious issues. If the transmission fluid has lost its red color, an indicator of oxidation, it's crucial to change it. Oxidation can cause the fluid to become acidic, breakdown protective additives, and reduce lubrication efficiency. This can lead to more wear on internal components, increased heat, and ultimately, transmission failure.
The Maintenance Process
Changing the transmission fluid generally requires dropping the transmission pan and replacing the gasket. This process can be complex and requires specialized tools and knowledge. However, many mechanics recommend regular maintenance to avoid costly repairs and ensure the transmission operates smoothly and efficiently over time.
Conclusion
While sealed transmissions are designed to be maintenance-free, regular fluid changes are a crucial part of maintaining optimal performance and longevity. Neglecting these maintenance tasks can lead to serious issues and higher repair costs. Therefore, it's essential to consult with a knowledgeable mechanic and adhere to the recommended fluid change intervals to keep your transmission in top condition.