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.
Yes, it is possible to flush the transmission. And, it is possible to do incredible damage to a transmission by flushing it, rather than changing the fluid. All too often, mechanics interested in a fast buck will flush a transmission without first changing the trans filter.