How frequently does the automatic transmission fluid need to be changed?

[CTScott]

Originally Posted by sansag13

Hi,

Please let me know from where can I purchase ATF WS oil for yaris and how much costs usually?
Also, it you can let me know where to find drain and fill location of it, it would be really helpful.

Toyota dealer is really the only source, since only Toyota WS ATF is approved for use.

Here's the drain plug. You need a 10mm alllen wrench (or allen socket) to remove it. The fill location is the ATF dipstick tube.

[sansag13]

Originally Posted by CTScott

Toyota dealer is really the only source, since only Toyota WS ATF is approved for use.

Here's the drain plug. You need a 10mm alllen wrench (or allen socket) to remove it. The fill location is the ATF dipstick tube.

Thank you Scott.. I am wondering how much used ATF comes out from this this drain plug. I was going through some forums and peopl say that just 1 quater oil will come from drain plug out for 3 quater. I am not sure how much correct this statement is for 2009 Yaris? It would be helpful if you can share your experiance with 2009 ATF change.