My girlfriend has a Dode Stratus with just over 100k on it. The trans fluid doesn't look terrible but she's had it for about 30k miles and no flush. Not knowing any history I'm assuming that it has not been flushed ever. I talked with a friend of mine who is a mechanic at a local dealership about using his flushing machine so I don't have to take an ATF bath and he's suggesting that if it's gone that long without a change I should leave it alone. I know I have heard of problems with a trans flush on a high mileage vehicle causing the trans to let go because all of the crap is cleaned out. Any suggestions? I hate to leave the fluid in there but I don't have the time or money to deal with the trans on that car letting go.