Transmission fluid change

GMC C3500
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KAYJAY
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  • 1 POST
I have a 1996 V6 S-10, I want to change the fluid in the manual transmission. Problem is no one will give me a straight up answer on the fluid type or number. My haynes book says that I have a New Venture 3500 transmission and gives me a photo of it. The drain and fill plugs don't look the same in the photo and on my truck. I have about 1" hex plugs on mine, one at the very bottom and one about 3"or 4" above it, do these resemble a NV3500? I can't find any #'s on the transmission, but they might be hidden. So, is my transmission a NV 3500 or is the picture wrong? and, what do I put in it? Any suggestions would be great, thanks.
May 2, 2006 at 10:53 AM
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LOSONE
  • ✓ASE Certified Mechanic
  • 1,616 POSTS
  • ASE Certified Mechanic
Use a good grade of 15W-90. IF THE OIL is thin like motor oil when you drain it then it is a Mazda tranny and requires 30W motor oil.

If it smells bad like an old dirty sock use the 15W-90 oil.

That is old mechanic wisdom! losone
May 2, 2006 at 11:32 AM
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