2003 Toyota Tundra Transmission fluid

LPEEK

MEMBER
2003 TOYOTA TUNDRA
4.0L
6 CYL
2WD
AUTOMATIC
110,000 MILES

My tundra calls type IV automatic transmission fluid. It's $10 a quart at the dealer. I know there has to be a compatible fluid, would someone let me know?

Saturday, June 27th, 2015 AT 7:01 AM

3 Replies

WRENCHTECH

MECHANIC
20,757 POSTS

There are some synthetic fluids that claim to be universal but I wouldn't bet my life on it. You can bet the correct fluid is cheaper than a couple thousand for a new transmission and IS what will happen with the wrong fluid.

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Saturday, June 27th, 2015 AT 9:31 AM

LPEEK

MEMBER
55 POSTS

I am sure Toyota don't have a refinery to make their own special tranny fluids. They may specify what is in the fluid that is made for them but I find it hard to believe that a refinery, just like drug makers, don't have a generic that is essentially the same thing. Unless I can find someone that I feel has good knowledge of the fluids, I will have to continue paying $10 a quart for the 14 quarts I need to have someone I can watch flush my trucks transmission.

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Saturday, June 27th, 2015 AT 10:05 AM

WRENCHTECH

MECHANIC
20,757 POSTS

You do as you please. I already advised of the risks and I am not exaggerating. I have seen many transmissions go south due to using the wrong fluid.

There are places that T-IV fluid can be bought for less money. Just Google it.

Here is one example

http://www.amazon.com/Genuine-Toyota-Automatic-Transmission-Type-4/dp/B009W391PQ

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Saturday, June 27th, 2015 AT 10:19 AM