CVT fluid capacity is 8 qts. First sample is with the factory fluid at 24.7k miles. At that time I drained 4 qts and replaced with new Honda HCF-2. So this sample has 3.9k miles since the last sample. 50% of the fluid has 3.9k, 50% has 28.6k. Wear metals are nearly half and TAN dropped as well. Virgin TAN is 0.4, so the 0.9 TAN now is excellent. It shows that replacing just half of the fluid makes a significant difference. I'll do another 4qt drain and fill in about another 5k and we'll see what those results look like. I'm guessing once that's done, I'll be set for another 15k or so before I start the whole thing over.