This is the first UOA for the automatic transmission for my 2006 Toyota Tundra Limited 4WD. This transmission uses Toyota Type WS fluid. Comments? It looks pretty good...
2006 Tundra - Auto Trans, Type WS Fluid, 15k miles
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Did you do a drain & refill? Capacity & what fluid as replacement? Do you have a magnetized drain plug?
Any towing? Highway or city?
What is virgin TAN and viscosity?
Any towing? Highway or city?
What is virgin TAN and viscosity?
New WS viscosity should be about 5.4-5.5cSt. Not sure about the TAN.
benjamming - I did not do a drain and refill - Supposedly, this fluid is not changed under normal operating conditions - According to the manual, it is simply supposed to be "checked" periodically. My tentative plan was to change it every 30k miles, but I might change this depending on the UOA results. I plan to perform the second UOA at 30k miles.
The predominant type of service the truck has seen so far is city driving, lots of short trips where the engine doesn't always get a chance to warm up thoroughly. We have also done some light towing, perhaps 10% or less of the time, towing a trailer that MAX weighs 2500 pounds loaded, probably less. The truck is equipped with the optional coolers and is rated to tow about 6,600 pounds.
The predominant type of service the truck has seen so far is city driving, lots of short trips where the engine doesn't always get a chance to warm up thoroughly. We have also done some light towing, perhaps 10% or less of the time, towing a trailer that MAX weighs 2500 pounds loaded, probably less. The truck is equipped with the optional coolers and is rated to tow about 6,600 pounds.
What % would be removed with a standard drain & refill? It does have a drain plug right? I assume no filter though? How do you check the level since it doesn't have a dipstick (right?)?
Thanks for posting this! Since WS is fairly new, every post like this that looks at WS adds to the knowledge pool.
Glad to see that the '06 Tundra has a nice wearing tranny. I've got a 2007 Tundra 5.7L 2WD CrewMax. Going to be adding an inline tranny filter to the cooler lines at some point to make it last as long as I can. (I buy new and keep vehicles until the wheels fall off.)
But, with that little wear at 15k, perhaps the filter is overkill? I don't know...
thanks much,
ben
Glad to see that the '06 Tundra has a nice wearing tranny. I've got a 2007 Tundra 5.7L 2WD CrewMax. Going to be adding an inline tranny filter to the cooler lines at some point to make it last as long as I can. (I buy new and keep vehicles until the wheels fall off.)
But, with that little wear at 15k, perhaps the filter is overkill? I don't know...
thanks much,
ben
WS VOA is posted in this forum.
Sheared a little too much from 6 to 5cst. I expected better from this expensive supposedly higher group oil thinner eternal life ATF.
Wear is typically low for RWD Toyota. Tranny should last an extremely long time.
I would definitely consider a magnefine or permacool filter if you don't plan on maintenance intervals.
Don't let total wear exceed 100ppm. I would guess that ~20k partial drain refills(or simply the filter), would be a good maintenance program.
This is my 3rd attempt at posting here. This forum doesn't like this combo(IE7/XPpro). Hangs up waiting all the time. Works perfect with Firefox. Now I gotta figure out the cause.
Look at the other Lexus/Toyota UOAs here.
ATF filters are never overkill. If the 2007+ 6-speed is as robust(it needs to be supporting that HP/weight) as early Toyota transmissions, it should last long enough for the wheels to fall off(balljoint related pun intended). Make sure you keep tabs on any programming issues that the dealer could fix with a reflash.
Sheared a little too much from 6 to 5cst. I expected better from this expensive supposedly higher group oil thinner eternal life ATF.
Wear is typically low for RWD Toyota. Tranny should last an extremely long time.
I would definitely consider a magnefine or permacool filter if you don't plan on maintenance intervals.
Don't let total wear exceed 100ppm. I would guess that ~20k partial drain refills(or simply the filter), would be a good maintenance program.
This is my 3rd attempt at posting here. This forum doesn't like this combo(IE7/XPpro). Hangs up waiting all the time. Works perfect with Firefox. Now I gotta figure out the cause.
Look at the other Lexus/Toyota UOAs here.
ATF filters are never overkill. If the 2007+ 6-speed is as robust(it needs to be supporting that HP/weight) as early Toyota transmissions, it should last long enough for the wheels to fall off(balljoint related pun intended). Make sure you keep tabs on any programming issues that the dealer could fix with a reflash.
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