2018 Yaris iA - Changing the ATF?

[B.B._07]

Why would you want to change the ATF on a 1 year old car? The modern low viscosity ATF's like Toyota WS or Dextron VI are all semi or full synthetic and last a very long time. I don't know what the ATF service interval is for a 18 Yaris iA but it has to be at least 100K miles.

[Toolaholic]

Originally Posted by B.B._07

Why would you want to change the ATF on a 1 year old car? The modern low viscosity ATF's like Toyota WS or Dextron VI are all semi or full synthetic and last a very long time. I don't know what the ATF service interval is for a 18 Yaris iA but it has to be at least 100K miles.

I agree 1 year is too early but I have read Toyota w/s leaves a lot to be desired . My 2007 shifts so much better with amsoil fluid in the transaxle.

[lorne]

Originally Posted by Toolaholic

I agree 1 year is too early but I have read Toyota w/s leaves a lot to be desired . My 2007 shifts so much better with amsoil fluid in the transaxle.

My 2007 has only ever had Toyota WS in it, and it shifts brilliantly at 166,000 Kms. Mind you, I think the Japanese NCP95 with the AHPNK suffix has a different transmission for the AWD, but I just don't know how different.

Today, Toyota told me that they recommend an AT drain every 50K Kms. That's only 31,000 miles or so, which seems a pretty short interval to me. But at least your ATF should be clean.

[soupking]

Originally Posted by B.B._07

Why would you want to change the ATF on a 1 year old car? The modern low viscosity ATF's like Toyota WS or Dextron VI are all semi or full synthetic and last a very long time. I don't know what the ATF service interval is for a 18 Yaris iA but it has to be at least 100K miles.

It has that over that many miles but a gross amount of the miles are on highway so it's hard to gauge. It still doesn't labor too much, but I looked to get it done anyway as a precaution. Engine is a champ and we're religious about getting the oil changed (fully synthetic only).

The mechanic tells me it's 'sealed' and that he can't access the transmission. He called to another guy and said he didn't have the setup to do it either.

So I think for whatever reason I have to take it to a dealership which I fear. I have a terrible history with dealerships sales and service. So much I bought this car through Hertz. If I could find a mechanic that could do the job I'd pay double, but I don't think that is the deal with this model. Even the fuses on this thing are custom.

The ATF required for it is Mazda FZ fluid.

Thanks for the replies, guys.