Originally Posted By: bmwtechguy
On another note, I cannot see how the fluid being slightly thinner than the original spec Dex III or Mercon would be an issue.
That's the thing, it's NOT thinner, it's actually THICKER. If you compare the 20hr shear-test results then the true operating viscosity becomes more clear.
Just like HTHS is a more accurate measure of an engine oils viscosity, the post-shear rating of a hydraulic/gear oil is the one to watch.
On another note, I cannot see how the fluid being slightly thinner than the original spec Dex III or Mercon would be an issue.
That's the thing, it's NOT thinner, it's actually THICKER. If you compare the 20hr shear-test results then the true operating viscosity becomes more clear.
Just like HTHS is a more accurate measure of an engine oils viscosity, the post-shear rating of a hydraulic/gear oil is the one to watch.