You can use DOT 3 or 4. DOT 4 gives you a higher boiling point.
The 2003 Hyundai Santa-FE runs on regular unleaded.
NO, Break Fluid Only
DOT3
A 2003 Chrysler Town and Country uses ATF+4 ,transmission fluid.
You can add transmission fluid to your 2003 Chrysler through the transmission fluid dipstick holder. It is best to use a funnel to prevent spilling the transmission fluid.
Use only ATF+4 and do not use any Universal Fluid.
There is some confusion on what fluid to use in the 2003 KIA Spectra. The correct fluid is Special Lubricant Fluid (SLF). Do not use Dexron or any other fluid. Go to your local KIA dealer and purchase the fluid or have them change the transmission fluid. Using any other fluid may harm your transmission.
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DOT 3
NO NO NO!!!! OMG I hope you did not try that already. Break fluid and powersteering fluid have different properties for different pressures, they are not the same thing and if you put break fluid in your power steering system you will destroy your car.
Use ATF+4 only.
Break fluid is a possibility.... Do not use the car until a qualified mechanic has checked it out.