Ultra1Plus Power Steering Fluid, 5 gal.

A: Power steering fluid and NH134D hydraulic/transmission oil are not always interchangeable. NH134D is a universal tractor hydraulic fluid (UTHF), which means it is designed for hydraulic systems, transmissions, and sometimes power steering systems in specific equipment, like New Holland tractors. Compatibility Considerations: OEM Specifications: Some tractors and heavy equipment allow NH134D or equivalent UTHF for power steering, but check your equipment’s manual to confirm. Viscosity Differences: NH134D is thicker than standard automotive power steering fluid. Using it in a system designed for lighter power steering fluid (such as ATF or PSF) can cause hard steering, poor lubrication, or pump damage. Seal Compatibility: Power steering systems use seals that may not be compatible with NH134D, leading to potential seal swelling or leaks. Recommended Action: If your power steering system specifically calls for NH134D (or an equivalent UTHF), you can use it. If your system requires ATF (like Dexron/Mercon) or dedicated Power Steering Fluid, do not use NH134D. Always check your equipment manual or consult the manufacturer for guidance.