Originally Posted by sjdwales
u will find it hard to find a place to touch/change your transmission fluid at 100k miles, let alone 150k miles. its 150k miles at normal driving conditions, what is normal driving? if you change the maintenance program to excessive idling/real driving conditions im guessing its showing it about every 30k miles. on my own vehicle i would do it every 50k miles.
If your car is a traditional planetary automatic transmission with a torque converter then yes you likely need to change the fluid every 30k or less. However the DCT is essentially a manual transmission form a lubrication stand point and no one usually changes the transmission fluid in a manual at 30k as it isn't broken down at that point the DCT should be fine following the same intervals. The old transmission uses a lot more fluid and also runs hotter due to the torque converter and oil pump, but the DCT is more akin to a manual transmission with less than 3 quarts of Dual Clutch fluid which is similar to MTX fluid.