AT fluid change earlier than 100k miles

[hw6515]

Pretty much done with the 80k miles maintenance.

Items replaced so far:
Water pump, water pump pulley and belt.
Shocks and springs >>> tokicos red in the front, blues in the back with MR springs.
PCV valve.
8Qts ATF + Transmission filter. (in two steps, 4qts at a time)
Spark plugs.
Fusible link, + and - battery connectors.

Added:
Oil catch filter.

Cleaned:
Intake Manifold.
1 Valve.

[Absolutely Red 12]

The "dirt" is clutch pack material, pretty normal.

A UOA on ATF is pretty meaningless, as there really is no much oil breakdown due to no exhaust blow-by infecting the oil.No pistons scraping cylinder walls, causing metal shavings.
The fluid pretty much is used for fluid pressure, and to keep bands, and clutch packs lubed, that's why it can go 100K miles.

[hw6515]

Gasket part number for transmission and oil plug.

[hw6515]

The oil catch filter does work, less than 1k miles at the time of the pic.

ATF looks clean also, if now the transmission last 50k more miles it wont be wasted time and effort.

[why?]

Originally Posted by Yarflana

This may have been previously stated, but I didn't see anywhere in my manual for my 2008 Hatch base model on how to check the transmission fluid level, or anything like that. Would that imply is doesn't need changing according to Toyota?

I guess I would need to look at the required maintenance services intervals and see if it indicates a change is required.

yea technically Toyota says the transmission fluid should last the life of the car. That is total bs. It'll last about 60k at most, then you should change it.

[hw6515]

Did this using: Tamago's guide to ultimate yaris handling.

http://www.yarisworld.com/forums/showthread.php?t=14026


What do you guys n gals think?