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

[FochMan]

I've been doing 30,000 drain and fills. It costs me 3 quarts ATF (Toyota WS), 1 drain plug gasket and a little time. Cheap, easy and the trans will out live the car...

[Hamster]

Thanks for all the replies, everyone! No, I'm not trolling, of course, it's just that I've read all sorts of different things about the ATF fluid. I've read on general car forums that manufacturers say 100,000/lifetime because they want you to wear out your transmission so that you are forced to buy another car (just as UTVitz mentioned). I was trying to figure out if that was true or not.

Looks like I'll have the ATF changed at the 30,000 mark just to be safe. That shouldn't be for a few more years, though, so it looks like this is really something I don't need to worry about. I intend to keep this car forever. I take public transportation to work, so no sense in trading in a car I hardly drive for another car I'll hardly drive. By the way, is there any other type of maintenance work that should be done, that the maintenance book that came with the Yaris doesn't mention, or is inaccurate?

[sansag13]

Originally Posted by FochMan

I've been doing 30,000 drain and fills. It costs me 3 quarts ATF (Toyota WS), 1 drain plug gasket and a little time. Cheap, easy and the trans will out live the car...

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.

[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.