Hey guys i just picked up a 12 yaris with 113k on the clock. I contacted the dealer and was told the transmission fluid does not need to be changed but it looks dark. it has a dipstick so i'm assuming it also has a drain bolt beneath, any recommendations on a fluid? dealer said it uses the toyota ws fluid. i was considering doing 3 to 4 drain and fills but unsure of what fluid to use. any recommendations? thanks