Just purchased a 2006 XC90 with a V8 with 80k km (I know a gas guzzler). Was wondering how to flush the radiator. Where are the drains located?

Also, the location of the transmission dipstick?

What about a flush of the transmission. I hear one can use a Toyota transmission fluid. Is this true?

Does the bevel gear need flushing as well?

Thanks in advance.