Reached manufacturer service interval (usually 60,000 to 100,000 miles)
Fluid is dark brown instead of red
What It Is
Transmission fluid lubricates, cools, and provides hydraulic pressure for shifting. It breaks down over time and miles.
Why It Matters
Old fluid causes wear inside the transmission. A $200 service is much cheaper than a $4,000 rebuild.
How to Save Money on Transmission Fluid Service
A drain-and-fill (not a power flush) is usually safer for high-mileage transmissions
Always use the exact fluid type your manufacturer specifies, the wrong fluid can destroy a transmission
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