After all that nice work you did to get the old and dirty transmission fluid, you didn't care use the same container to pour the new fresh and clean fluid and gets contaminated ! I don't get it...
This Highlander has capacity of 8 qtrs., so basically you just changed half of it, diluting the old fluid with a new. Does it really make a difference?
If I change 3.5 qt that means changing 40% of fluid and if drive car about 2 weeks let fluid mix with another fluid is inside and drain will increase better quality ?