RE: Power Steering Fluids - Dexron versus PSF-3
Just by your post I bet that PSF-3 fluid will be able to handle a higher pressure rack & pinion system. However, when it comes down to it if it was my vehicle - power steering fluid is still power steering fluid. Same goes for oil, everyone has their own brand but no auto manufacturer makes their own synthetic which is superior in lubricity to petroleum based oils! The only fluid I would be concerced about topping up is brake fluid, as there are several types and the majority of systems requires DOT-3 brake fluid as it is more reliable in the high heat that the brakes must endure. Anyway, if the vehicle isn't under warranty Hyundai can't say anything to you about what brand of fluid you use in YOUR vehicle. If your still in doubt just have it changed every 2-3 years.