how often should the transmission be flushed
In a manual transmission, the recommendations can also vary widely, but for different reasons. Most manufacturers suggest 30,000 to 60,000 miles as the point at which you should change the transmission fluid in a manual transmission. However, vehicles with transmissions that are under âhigh stressâ should change the transmission fluid every 15,000 miles. âHigh stressâ for a manual transmission would be situations such as being driven on lots of short trips where gears are changed more often.