So, I bought the car used, 06 LS, had around 98k when I bought it. I have no idea if anything has ever been done to this car beyond oil changes. The Transmission seems to function totally fine right now, no issues shifting, and I don't ever really drive around mountains or really hot weather or do heavy pulling or anything else described in the Owners Manuel. i am now sitting at around 106k, what should I do in the name of maintenance? I notice a lot people saying how dangerous Flush's are, even more so on cars with high mileage. Should i just get the fluid changed normally, with gravity? Or is this fluid lifetime? or what? I'm sorry if this is a dumb question, but I know almost nothing about cars and have very little money, so would like some help.