About how many miles should I get my 2is transmission serviced?

 

Well if you bought the car new. 50k miles would've been ideal for the first drain, or flush. Then probably every 30-50k a drain, and fill. Until it's toast car or trans. At about 80-100k you'd probably want to drop the pan clean mags, and replace the filter.

 

On my 2013 Toyota Sienna that uses WS ATF, I did it at 100K and now have nearly 150K on it. On my 2010 IS350 Sport I did it at 68K. On my both cars I dropped the pan and replaced the filter