When Should I Check My Transmission Fluid?

June 5th, 2026 by

Cross-section of a car gearbox. mechanics work in the garage. hand car mechanic in working clothes.

You may have thought “I should check my transmission fluid” recently, and you may be right — but how do you know when it’s necessary? Strange noises when you shift gear, laggy transmission times, and leaking fluid are some of the warning signs that your transmission fluid needs inspection. North Penn Mazda is here to help you with your transmission service needs, especially if you’ve dealt with any of these problems.

Noises and Vibrations

If your transmission fluid is in good working order, shifting gears should be smooth and efficient. When you shift gears, listen for any strange noises like grinding or squeaking, and be mindful of any unnecessary vibration at the gear shifter or across the entire car. That indicates that something’s wrong with your transmission system, including bad transmission fluid.

Slow Gear Shifting

Cars that are low on transmission fluid will take longer than usual to shift gears, since the fluid is required to change gear type. This can also happen if your transmission fluid is dirty or has broken down too much. Any delays in gear shifting can be dangerous, especially in manual vehicles on a highway.

Leaking Fluid

Of course, leaking transmission fluid needs to be addressed as soon as possible. Transmission fluid is often red or brown in color, so if you notice any darker puddles underneath your vehicle, bring your car in for service immediately. This includes both checking your transmission intake for leaks and repairing them, as well as replacing lost fluid.

Check My Transmission Fluid in Colmar, PA

Now you know when it’s time to check your transmission fluid, but what’s the next step? Contact North Penn Mazda today to schedule a visit with our service team or order replacement fluid.

Posted in Service