When should I change the Transmission Fluid?

February 21, 2025

When should I change the transmission fluid? 

A large, metallic car transmission | Bob's Main Street Auto & Towing
When Should I Change the Transmission Fluid?
Your vehicle’s transmission is one of the most important parts of your vehicle, responsible for transferring power from the engine to the wheels. Regular transmission fluid changes help with smooth gear shifts, prevent overheating, and extend the life of your transmission. But when exactly should you change your transmission fluid? 

How Often Should You Change Transmission Fluid?
The recommended interval for changing transmission fluid depends on several factors such as the type of transmission, your driving habits, and your vehicle manufacturer’s recommendations.

Automatic Transmission Fluid Change Intervals
Most manufacturers recommend changing automatic transmission fluid every 30,000 to 60,000 miles under normal driving conditions.
If you frequently tow, drive in stop-and-go traffic, or experience extreme temperatures, you may need to change it as often as every 15,000 to 30,000 miles to prevent excessive wear on the transmission

Manual Transmission Fluid Change Intervals
Manual transmission fluid generally lasts longer and should be changed every 30,000 to 50,000 miles, depending on driving conditions.
If you drive in harsh conditions, like frequent stop-and-go traffic or off-roading, you may need to change it more frequently.

Signs That Your Transmission Fluid Needs to Be Changed
Even if you haven't hit the mileage interval, your transmission may show signs that the fluid needs changing.
Slipping Gears – If your vehicle hesitates when shifting gears or slips into another gear unexpectedly
Rough or Hard Shifting – If shifting gears feels jerky, rough, or clunky, it could be due to contaminated or degraded fluid.
Overheating – A burning smell or high transmission temperature warning on your dashboard
Dark or Dirty Fluid – Fresh transmission fluid is typically bright red or pink. If it looks dark, brown, or smells burnt, it's time for a change.
Transmission Fluid Leaks – Puddles of red or brown fluid under your vehicle suggest a leak, which could lead to low fluid levels and potential damage.

What Happens If You Don’t Change the Transmission Fluid?
Failing to change your transmission fluid can lead to costly repairs, including:
Increased friction and wear on transmission components
Overheating due to poor lubrication
Transmission failure

Routine maintenance is key to avoiding expensive repairs and ensuring your vehicle performs at its best. Book your next service appointment with Bob's Main Street Auto & Towing today and drive with confidence, knowing your car is in the hands of trusted professionals.

Visit us online or give us a call to book your service appointment. Let us help you keep your car running smoothly and safely for years to come!


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