Atlas Transmission Blog
4 Signs of Contaminated Transmission Fluid that You Shouldn’t Ignore

Healthy transmission fluid plays a critical role in ensuring your vehicle’s transmission operates smoothly by lubricating components, reducing friction, and cooling the system. However, transmission fluid can become contaminated, leading to a variety of issues. At Atlas Transmission, we can expertly address issues related to transmission fluid. Here are four signs that your transmission fluid might be contaminated.
Discolored Transmission Fluid
Healthy transmission fluid is typically bright red or pink. But if the fluid becomes contaminated, it can darken to a brown or black color, indicating that it has degraded or absorbed dirt, metal particles, or other contaminants. If you check your transmission fluid and notice that it has turned dark, it’s a strong sign that the fluid is contaminated and may need to be replaced.
Burnt Smell
Another telltale sign of contaminated transmission fluid is a burnt smell. When transmission fluid becomes dirty, it can overheat and lose its ability to properly cool and lubricate the transmission system. This leads to a burning odor, which suggests that the fluid has broken down and is no longer effective. If you detect a burnt smell, it’s important to have the fluid inspected and potentially flushed to prevent further issues.
Slipping Gears
Contaminated transmission fluid can cause difficulty in maintaining consistent pressure within the transmission system, which can result in gear slippage. You might notice the engine revving without a corresponding increase in speed, or your vehicle may struggle to stay in the correct gear. If your transmission is slipping, it’s crucial to have the fluid checked as soon as possible.
Delayed or Rough Shifting
If your transmission fluid is dirty or filled with particles, you may experience rough or delayed shifting when changing gears. Contaminated fluid can make it harder for the transmission to smoothly engage gears, leading to jerking motions or a noticeable delay when shifting from one gear to another.
Transmission Service in Tucson
When you need
transmission service in Tucson and the surrounding area, contact Atlas Transmission at
520-641-2026. At our local transmission shop, we can expertly handle your vehicle’s transmission needs. Feel free to give us a call to schedule an appointment!









