Hey guys I'm new to forums I'm not sure if I'm posting this to the right discussion. Anyways, I'm planning on replacing my transmission fluid on the crewmax i just bought it and it has 115000 miles on it and I'm not sure if the guy before me ever changed it! I know I'm not supposed to do a total flush with that many miles but my question is, if i drop the pan to replace the filter would I be replacing too much fluid at that point to possibly have problems. Also I'm not sure if i should be using Valoline maxlife ATF or not. i tried researching alternative to Toyota WS but nobody seems to know lol.