Oh Where Oh Where...
#3
No stick.....a check/fill plug (#41 in this pic)....on level ground the check/fill plug is removed and the fluid should be "right at" the hole.
If you are not sure of the age of the fluid I would change it....remove the drain plug (#39 in pic - insert 3/8 ratchet into hole to remove/install) to drain....then refill thru the check/fill plug....of course you reinstall the drain plug before refill
If you are not sure of the age of the fluid I would change it....remove the drain plug (#39 in pic - insert 3/8 ratchet into hole to remove/install) to drain....then refill thru the check/fill plug....of course you reinstall the drain plug before refill