manual transmission fluid

[sonoma driver]

my glove box says i need ml3 transmission fluid. It suggests "DexronIIE Automatic transmission fluid" What I hear is that automatic transmission fluid is not the same as manual transmission fluid. Is my owners manual correct in refering me to this fluid? Should i check for a different number to refer me to a different kind?

[GM-Tech]

Yes, some of our manual trannys use automatic trans fluid. Some use a special syncromesh fluid. Use whatever your manual tells you is appropriate.

[snoman]

Yes, some of our manual trannys use automatic trans fluid.  Some use a special syncromesh fluid.  Use whatever your manual tells you is appropriate.

 

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GM started using ATF fluid in some gearboxes years ago to reduce pumping shearing losses in oil to increase MPG some vs thicker gear oil.

[rascal]

my 91 ford used atf in the trany

[sonoma driver]

is there any way to know for sure? All I did was look in my glove box for something resembling the numbers for the type of fluid

[GM-Tech]

is there any way to know for sure? All I did was look in my glove box for something resembling the numbers for the type of fluid

 

What do you mean? You said your owner's manual says to use ATF. So that's what you use. What kind of numbers are you expecting to find in the glovebox?

[sonoma driver]

the manual gives syncromesh and atf fluid options but for different types. I just dont know the type for mine

 

the ml3 and mw1 types are atf

 

while

 

the my2 type is syncromesh

 

I looked at all the numbers and letters in the glove box and found only ml3 but I do not know if it is for the transmission or something else

 

hope this helps

[GM-Tech]

I looked at all the numbers and letters in the glove box and found only ml3 but I do not know if it is for the transmission or something else

 

Ah, okay. If you found ML3 on that index card sized white label with all the three letter codes on it, yeah, that's what you have. You won't find any options codes anywhere else and ML3 is not for anything else.

[cashflow50]

Where is the drain plug for the tranny located. can you provide pictures if possible.

[sonoma driver]

if you look on the passenger side between the door and the wheel. The transmission is in the middle of the truck

at least thats mine was.

 

once you find the plugs un do the fill plug(top most plug of 2). This is to check if you actually need a fluid change and to make sure if it is rusted on to not drain it because there will be no way to fill it again.

 

hope this helps

 

If you still need pictures i can try and get some

[cashflow50]

if you look on the passenger side between the door and the wheel.  The transmission is in the middle of the truck

at least thats mine was.

 

once you find the plugs un do the fill plug(top most plug of 2).  This is to check if you actually need a fluid change and to make sure if it is rusted on to not drain it because there will be no way to fill it again.

 

hope this helps

 

If you still need pictures i can try and get some

 

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Yah that will be great if you could provide me with pictures of the locations of these plugs.

[cashflow50]

if you look on the passenger side between the door and the wheel.  The transmission is in the middle of the truck

at least thats mine was.

 

once you find the plugs un do the fill plug(top most plug of 2).  This is to check if you actually need a fluid change and to make sure if it is rusted on to not drain it because there will be no way to fill it again.

 

hope this helps

 

If you still need pictures i can try and get some

 

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Yah that will be great if you could provide me with pictures of the locations of these plugs.

 

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this is on a new body style yukon right?

[sonoma driver]

no its a sonoma but it should be similar if its a stick shift. other wise if it is automatic then its different.

 

sorry that I didnt make it clear in the beginning