Just did second D&F of my car's ATF after almost 3k kms, drained almost 3.5 liters with dark red color but seen no contaminants or debris, not like the first time when dropped pan and replace strainer/filter, almost 4 liters was drained with very dark color and has what looks like dissolved dust. Will drive to Nueva Ecija this coming weekend, that's more than 350km trip via NLEX, SCTEX to Tarlac-Sta Rosa hiway, planning to drive at an average of 100kph at the expressway to release whatever stubborn debris there maybe, will do the third D&F when I come back. BTW, I use Whiz Dexron lll ATF, Product of USA, used seven liters,so far, will buy addl 4 liters for the third, I hope, it's the final D&F.