so guys . ES300-2000 has different filler plug or we have to use the dipstcik for diferential? I read diffrential fluid is Dextr 3 which is differnt from tranny fluid, and differential has a separate drain plug!. isnt this good enough to think there are 2 different services to be done? Is a massive confussion where ppl saying is the same. Has anybody done that himself? thanx,alan