hi guys i know this thread is old but i have an 2009 cx-9 GT and it has 35,000 miles. only maintenance I've done on it has been the air filter and battery. according to the owners manual I'm good. however should i be looking into replacing the transmission fluid and gasket if so were can i get the filter and gasket? The workshop manual only says to drain it using the drain plug. But ebay sells the filter kit. thanks.