How many quarts of transmission fluid for a hyundai elantra

call a few and ask for a quote

Automatic transmission :Genuine Diamond automatic transmission fluid SP-11M.

---------

For Manual transmission :SAE 75W/90 gear oil

------
To replace the fluid.There are no special requirements here. Drop the pan being careful not to damage the pan gasket with a container to catch the old fluid underneath it, replace the filter, replace the pan and then add about 4 quarts (via the dipstick hole) of the required Hyundai SP-III fluid you can get at the dealer. Double check the level with the engine warm and in park position. Be aware that your transmission uses a specific formulation of transmission fluid, available at the dealer. It is a bit more expensive than off the shelf fluid like Dextron, but you are only changing it every 30K, so the cost over time is minimal. -----------
this should help.thanks.Helpmech

A Service Department as a Hyundai Service Department typically uses a "Fluid Exchange" machine (approx. 7 quarts of Hyundai SPIII fluid) to do a flush. There is a drain plug at the bottom of the transmission (24 mm bolt) to drain it. However, this method is not entirely/completely effective. This drain plug only empties the pan, not the torque converter -- so you're only replacing about 3 to 4 quarts with this method (torque converter does not drain). So, once you've replaced the 3 to 4 quarts this way, there's still contaminated fluid in the torque converter which will circulate back into the rest of the transmission. RECOMMENDATION: Have a certified technician do a flush (fluid exchange).

Your transmission fluid is dangerously low (tranny is dry). The pops & jerks are the transmission
internal components trying not to seize onto each other due to lack of lubrication and/or overheating.
Low transmission fluid leads not only to loss of lubrication but lots of overheating (of the tranny).
The loss of Elantra performance (speed tops out at 55), is caused by power loss due to friction inside the transmission. All your power is lost overheating the transmission (toward destruction), instead of
being transmitted through the transmission to the wheels.

The 2004 Elantra takes Hyundai SP-III Automatic Transmission Fluid, with 8.4 quarts used in a
total refill - but just 5 quarts at a fluid change. For How-to transmission fluid change instructions:

http://en.allexperts.com/q/Hyundai-Repair-815/2004-Elantra-GT-transmission.htm

www.autozone.com claims that 2004 Hyundai Elantra can take these non-Hyundai ATF's:
Lucas Semi-Synthetic Multivehicle ATF
Pennzoil Muilt Vehicle ATF
Valvoline Maxlife Dex/Merc ATF
Castrol High Mileage ATF

Yes, you must as this burnt oil may have lost its vicinity and reduce that of the original oil already in the system. In an emergency it is fine to make up thelevel but must be changed soonest .

10W-30 grade oil is recommended for your car

Did you check the transmission fluid level? If necessary, add fluid. However you probably have a more serious problem. Take the car to a qualified transmission mechanic.

yes

It is not a good idea to run it at all with too much fluid.. Very likely to blow eals and gaskits..
Drop the pan and re-fill..