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I have had my Z06 for a year now. 3000 miles or so. I did factory fill change at 888 miles. I figure it is time again. I am thinking of doing engine, trans, differential - what should I put in it?
I'd wait and get a few more miles!! If your shifting is kind of notchy and you want smoother shifts and app 1 mpg better then change to synthetic ATF like Mobil One ATF or Redline or Amsoil. You really dont need to do the differential till at least 50k. It already comes synthetic factory fill.
Agrre with all above. Check your manuals and video. Your way to early for fluid changes. I do High Speed Driving schools with my 02 Z06 and just do the oil M1 15-30 before each session and temp is low and condition realtively clean.
To what temp is the trans fluid good to anyway? I had the temperature sensor come on. It cooled down quickly but regardless - did I smoke the fluid? Might be good to swap the fluid.
If you get to 10k miles under warranty you may get a free trans fill courtesy of GM. The threads on this forum indicate a seal leak is a strong possibility on the drivers side by then. Did mine at 10.5 K Let the General pay, maybe they will get the idea to do it right the first time.