India, Oct. 16 -- Automatic transmissions make driving smoother and less stressful, but they're also among the most sensitive systems in your car. Poor maintenance or careless driving habits can cause lasting damage and lead to expensive repairs. Here are eight common mistakes that can silently kill your automatic transmission, and how to avoid them.

Most automatic transmissions are designed to operate around 93-95 degrees Celsius. Once the temperature rises beyond that, internal damage begins quickly.

Overheating can also cause transmission fluid to lose its lubricating properties, forming a sticky varnish that damages gears and bearings. Avoid prolonged high-speed driving in hot weather and check for any leaks that may cause overheati...