Draining tranny fluid out of XG 300

The procedure is fairly simple. Actually, I'd remove the drain plug, drain, reinstall, and add five quarts first. That way you know you've removed a whole five quarts of old fluid and installed a whole five quarts of new fluid. Then, if you want to replace more fluid, pull the pump side cooler hose off the trans, install a long hose on the fitting and place the other end in a bucket or similar receptacle. (The trick here is figuring out which end the pumping comes from. I don't know myself. If you're unsure, clamp off the cooler hose you just removed with some needlenose vice grips. This will avoid making a mess if you picked the wrong hose. Start the car very briefly and check to verify fluid is pumped into the bucket. If not, switch hoses.) Start the car and add fluid to the transmission through the dipstick fill tube as the transmission pumps it out. 12 to 16 quarts should replace most of the fluid in the transmission. This isn't perfect, obviously, because after the original five quarts, you're removing some new fluid with the old fluid. But it's the same principle that transmission flush machines use, so they're not superior to this method. When you're down to about four quarts left, turn the car off, reinstall the hose and return the fluid to the proper level. I'm not sure how much fluid you'll have left over this way, but it's better to have some left over than to run out without getting the fluid back to the proper level.

Use only SP-III fluid in your Sonata, or any newer model Hyundai, with the exception of the Veracruz.
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Thanks for your input Southluke,
The rain finally let up, the sun came out & the temperature rose to a
seasonal norm here in the wild West Kootenay Mountains. So as per the
instructions on HMA Service & your manual, I did drain the tranny thru the
hose to the cooler -a little hard on the hands in the tight space between
grill & rad. Then opened the drain plug on bottom of tranny, cleaned off the
magnetic shaft on end of drain plug, reinserted plug. I had on hand about 3
1/2 litres (US quarts) of fresh older spec tranny fluid from Hyundai so I
used that as the sacrificial flush, redid the flush steps -not letting it
run for more than 30,40 seconds, drained again, changed my spin on tranny
oil filter (may be an XG item only- looks just like a normal oil filter but
is not) & refilled carefully to get the right level -took about 6 litres.
I've got to say I could feel a big difference when test driving. Was getting
a bit of a 4th-5th shift shudder here in these extreme mountain roads with
10% grades , but with that new fluid a very noticeable difference -quicker,
tighter shifts.
Now as you say to start the next fund raiser to save for the next time
50,000 km rolls around. Of course, if you have your ear to the ground peak
oil may look after this for us, there may be no affordable gas to get me to
50,000km ! Nonetheless, still love to drive that hot rod XG & feel the G's
with my foot to the floor.
BCinBC
PS: For where we live I think my next 'car's going to be a horse!
"southluke" <luke.l.talley RemoveThis @boeing-dot-com.no-spam.invalid> wrote in message
news:paadndBuxbWPRJzanZ2dnUVZ_tuonZ2d@giganews.com...
>
> > GUEST wrote:
> > Hi Folks,
> > I want to drain as much fluid as possible & install clean auto
> tranny fluid
> > in this XG300. I seem to recall that you are supposed to disconnect
> the
> > tranny cooler line & crank the engine to help empty the torque
> converter
> > before refilling. Any advice?
> > BCinBC
>
> I am very interested in this subject. Have a 2002
> Sonata and finally saved enough money to buy a case of transmission
> fluid. The manual says to remove the cooler line and run for a
> maximum of 1 minute. Then drain from the drain plug. Replace the
> plug and fill with fluid. Then run again for max of 1 minute.
> Reconnect line and fill with fluid. Start savings account for the
> next fluid change.
>
> Maybe HyundaiTech will comment on this issue, hint, hint.
>
> The Kia/Mitsubishi dealer told me to use ATF-3+ or something like
> that, but I ain't using no cheap fluid in my Sonata.
>
> Let me know if you learn more, please.
>
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