2012 Corolla, I did a drain and fill and thought I got out 3 quarts but it turned out after measuring I only got out 2 1/2 quarts. I put in 3 quarts before I had measured the old fluid that had come out. Everywhere I've looked anyone who has done a drain and fill on these cars has gotten at least 3 quarts out. Now I'm wondering if it was a little low from the factory. I measured the fluid with the car on and after a 30 minute highway drive and it reads just a little bit above the hot mark. Should I just leave it alone or drain some out? Would 1/2 quart too much ATF hurt the tranny? It seems to shift the same or better than before the drain.
Last edited: