I checked the trans fluid over the wekend, and it is a light brown/pink, so I plan to do a fuill flush. I have three quick questions.

First, I noted the instructions on the faq, but am unclear on what size diametre hose is needed to fit into the dipstick tube.

Second, I understand one should be extremely careful with the trans fittgin where it meets the rad as coolant/trans fluid can mix here. How is this possible and how can I make sure there is no contamination of euither fluid?

Third, I will be putting in cold fluid when the engine will be warm, and the fluid coming out will be of a different volume as a result. Given hot fluid expands I am not sure how to make sure the right amount goes in. Do I measure at the full dipstick marker when hot or cold?

Thoughts appreciated.