For Savory substitute thyme (stroner flavor) or thyme with a little sage or mint.
1 Flushing a transmission with a pressurized machine can cost $125-$300 or more, and may include pushing a special cleaning compound through the system. 2  The power flush process typically replaces all of the transmission fluid, and can require 12-22 or more quarts.
You can read more about the cost of a transmission flush here. But back to the topic at hand, itâs suggested that you get a fluid change every 30,000 to 60,000 miles, or once every 2 years.nce you learn how to do it yourself, you wonât ever have to waste extra money getting your car serviced at a shop again! On average you will be spending around $40 to $75 for the transmission fluid change cost if you do it yourself.