Your 1998 Hyundai Elantra requires power steering fluid that meets the Dexron III specification. This is a common type of power steering fluid that is widely available. You can find it at most auto parts stores. Some of the best brands of Dexron III ATF include:
* Valvoline MaxLife Dexron III ATF
* Castrol Transmax Dexron III ATF
* Mobil 1 Synthetic ATF
* Shell ATF134 Dexron III ATF
These are just a few of the many brands of Dexron III ATF that are available. Be sure to read the product label carefully to make sure that it meets the Dexron III specification.