I use a long funnel with an "L" shaped piece of tubing at the end which fits
inside the filler plug hole.  I also recommend driving the car around a
little bit to get the oil warm before changing it.  Make sure that the car
is level before filling it.  If you have the front end jacked up without the
rear end also raised, then you won't be able to get the full capacity into
the transmission.

Eric

Go to UAP/NAPA or pretty much any auto part house. They sell a pump similar
to that on large hand-soap bottles. It has a length of clear vinyl hose
already attached. Stick pump pipe on lube bottle, end of vinyl hose in fill
hole, pump away until it runs out. Plug torque is about 30 ft lbs.

Level car first. Have oil pan under fill hole to catch runout.

The part that might not be clear is that the fluid level is determined by
when the fluid starts running back out the hole - thus the mention of being
sure the car is level when you fill it.

Mike

Yes. I bought about 3-feet of I think something like
1/2-inch (OD?) diameter, clear tubing at Home Depot. My oil
change funnel fits into it fine. Push one end into the upper
fill hole; the other coming out the engine compartment. Like
Michael said, watch for the manual transmission fluid
flowing out the hole. I put an oil pan underneath to catch
it when it does.

Not a stupid question. I think I asked around myself when I
did my first MTF change.

What the other (actually much more experienced) posters say
of course is fine or superior to this approach.

My driveway is on a small hill, so I have the option of
putting my Rhino ramps on the hill, driving the car onto it,
and having a pretty level car but space to work, too.

OTOH, I have changed the MTF several times without ramps or
jackstands. There's enough space from above and below to do
the job (assuming you're not an enormous person).

Going to do it yourself? Way to go. :-)