The "Sealed for Life" Myth: Why Some Maintenance Should Never Be Ignored
Modern vehicles are increasingly marketed as "maintenance-free," with many automatic transmissions now labeled as "sealed for life." Manufacturers often suggest that transmission fluid never needs changing during the vehicle's expected lifespan. For the average owner who trades in a vehicle every few years, that may seem reasonable. But for those planning to keep their vehicles long-term, "sealed for life" can become o
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