How Often Should You Get a Transmission Fluid Change?

Regular transmission fluid service is crucial to keeping your vehicle’s transmission running smoothly. While manufacturer recommendations vary between 60,000 to 100,000 miles, real-world conditions, especially Colorado’s mountainous terrain, demand more frequent fluid changes—every 30,000 to 40,000 miles.

Unlike a full transmission flush, which replaces nearly 99% of the fluid, a drain and fill or pan drop service is often the safer and more practical option, especially for vehicles with over 70,000 miles. This article will outline when and why you should schedule a transmission fluid change.

Recommended Transmission Fluid Change Intervals

Under 70,000 Miles:

A transmission flush or drain and fill is ideal.
Replaces most, if not all, of the transmission fluid.
Helps remove early contaminants and prevent long-term wear.

Over 70,000 Miles:

Avoid a full flush to prevent dislodging built-up debris.
Instead, opt for a drain and fill or pan drop with filter replacement.
These methods remove most of the old fluid without stressing the transmission.

Why Frequent Fluid Changes Are Necessary

Prevents overheating – Transmission fluid regulates temperature; old fluid loses effectiveness.
Ensures smooth shifting – Clean fluid maintains proper hydraulic pressure.
Reduces wear – Dirty fluid accelerates transmission part degradation.
Extends transmission lifespan – Routine maintenance prevents costly repairs.

Signs That It’s Time for a Transmission Fluid Change

Delayed or rough shifting – Dirty fluid affects gear engagement.
Transmission overheating – Warning lights or a burning smell.
Dark, burnt-smelling fluid – Check the dipstick; clean fluid should be bright red.
Slipping gears – Low or contaminated fluid can cause transmission slipping.

To ensure long-lasting transmission performance, schedule a transmission fluid change every 30,000 to 40,000 miles. Vehicles under 70,000 miles may benefit from a flush, but those with higher mileage should opt for a safer drain and fill or pan drop service.

For expert service tailored to your vehicle, schedule a transmission fluid service today at AdvancedTransmission.com.