Understanding the Importance of Transmission Maintenance

The Problem with Transmission Failure

Every year in the United States, over 13 million automatic transmissions fail, and that's a big issue. Research shows that almost 90% of these failures happen because the transmission overheats and the fluid gets contaminated. The main reason for this is the Automatic Transmission Fluid (ATF) getting oxidized, which makes it lose its protective abilities. Heat is a major factor in this oxidation process.

Why Transmissions Fail

Modern engines are smaller and faster, and with more stop-and-go driving, the ATF is exposed to higher temperatures, causing it to break down faster. The transmission is like the heart of the engine, providing power to the vehicle. With 800 parts, it takes an expert to fix any problems that arise.

The Importance of Maintenance

When small particles like metal shavings get into the transmission fluid, they can cause clogs and wear on the transmission components as they move through the gears. If the transmission isn't maintained regularly, it may need to be rebuilt to replace worn-out parts.

Maintenance Differences

Manual transmissions are easier to maintain and usually just need the fluid flushed and replaced. Automatic transmissions are more complicated and may require fluid flushing, filter replacement, and pan gasket replacement.

Keeping Your Transmission Healthy

Transmission fluid is crucial for the transmission to work properly, so it needs to be clean and high-quality. Check your car's manual for the recommended maintenance schedule, as it can vary depending on the make and model of your vehicle.

When to Get a Transmission Fluid Flush

It's recommended to get a transmission fluid flush every 30,000 to 50,000 miles. Hillside Auto Repair suggests doing it every 30,000 miles to protect your investment. Fresh transmission fluid helps the clutch hold better, preventing slipping and reducing heat from friction.

Signs of Transmission Issues

If you're having trouble shifting gears, experiencing gear slippage, seeing fluid leaks, or hearing strange noises like grinding or shaking, it's time to get your transmission checked. Regular fluid changes can extend the life of your transmission and our team is here to help you through the process.


Our experienced technicians can diagnose any issues with your transmission and provide the necessary repairs or replacements to keep your vehicle running smoothly. Ignoring transmission problems can lead to costly repairs down the road, so it's important to address any issues as soon as they arise. Trust our team to provide reliable and efficient service to ensure your transmission is in top condition. Schedule an appointment today to have your transmission checked and avoid any potential breakdowns on the road.