Transmission fluid is very important to an automatic transmission. Transmission fluid is a slippery liquid that acts as a lubricant for all of the moving parts inside your transmission. In an automatic transmission, this fluid also serves as a coolant and a viscous fluid that transmits power from the engine to the transmission. Most cars come with red transmission fluid, which is good to know if you are looking for a leak. Most manufacturers recommend manual transmission fluid be changed every 30,000 to 60,000 miles, and automatic transmission fluid from every 30,000 miles to never although you will probably want to service your transmission between 60,000 – 100,000 miles to make sure everything is working properly. If you need your transmission fluid checked, stop by Advanced Transmission. Their trained transmission repair technicians will check your fluid levels and make sure everything is working properly before a major problem arises. If your make or model has a leak, they can fix that too!