Best Power Steering Fluid: Full Guide

Although automotive manufacturers continue to move toward electric power steering, numerous vehicles still rely on hydraulic power steering systems. Within these older steering systems, power steering fluid reduces the effort required to turn the wheel, allowing drivers to avoid a workout every time they drive. 

The guide below includes a list of the best power steering fluids that simplify basic vehicle operation, regardless of where your vehicle takes you. 

What Is Power Steering Fluid?

As a type of synthetic hydraulic fluid, power steering fluid transmits hydraulic pressure throughout the steering system, allowing input from the steering wheel to drive the front wheels with reduced force. 

It’s similar to how your car’s braking system functions in many ways. When you press the brake pedal, the hydraulic pressure of the brake fluid squeezes the calipers, causing them to contact the brake pads against the brake rotors. 

Power steering fluid is one of the many fluids that keep your vehicle running smoothly and must be kept clean in a sealed system to function correctly. In every vehicle equipped with hydraulic power steering, the power steering fluid within the system accomplishes several tasks.

For example, the fluid lubricates several critical components, including the power steering pump, valves, and gear, prevents corrosion and foaming, and reduces the whine associated with dry or failing power steering systems. 

Best Power Steering Fluid: Our Top 5 Picks

Many OEMs offer branded power steering fluid, but several viable aftermarket options are available if you prefer not to pay a premium price. You can find many, if not all, of these best power steering fluid picks online or at your local auto parts store. 

Here are the best power steering fluids for your vehicle. 

Shell Oil Power Steering Fluid

Designed with advanced additive technology, this fluid offers excellent protection against wear, oxidation, and corrosion, helping to extend the life of your power steering components. It ensures consistent hydraulic performance across a wide range of temperatures, which is crucial for responsive steering in both hot and cold climates.

One of the key advantages of Shell’s formulation is its compatibility with most domestic and imported vehicles, making it a convenient choice for a variety of car owners. The fluid’s ability to maintain optimal viscosity under pressure ensures smooth and quiet steering operation, reducing the risk of stiffness, noise, or system strain. 

Additionally, Shell is a globally recognized brand with a long-standing reputation for quality and innovation in automotive lubricants. 

Valvoline Power Steering Fluid

Valvoline Power Steering Fluid is a trusted and effective solution for maintaining the health and performance of your vehicle’s power steering system. Valvoline’s formula provides excellent protection against wear, oxidation, and corrosion.

One of Valvoline Power Steering Fluid’s standout features is its compatibility with a broad range of vehicle makes and models, including many domestic and foreign cars. This makes it a versatile and convenient option for drivers who want a hassle-free maintenance solution. The fluid maintains optimal viscosity and hydraulic stability, helping to prevent system leaks, pump failure, and steering stiffness.

Valvoline has been a trusted name in automotive fluids for over 150 years, and its commitment to innovation and quality is reflected in this product. Each batch undergoes rigorous testing to meet or exceed manufacturer requirements and industry standards. 

For drivers looking for long-term protection, reliable steering performance, and peace of mind, Valvoline Power Steering Fluid stands out as a dependable and proven choice.

Royal Purple Max EZ Higher Performance Power Steering Fluid

For those wanting more from their power steering fluid, Royal Purple responds with its exclusive Synerlec additive technology, featuring rust inhibitors, wear protection, and a non-foaming formula. 

Built to withstand extreme operating temperatures, Royal Purple’s power steering fluid keeps essential power steering components cooler, promoting quiet and efficient operation. It’s also compatible with many OEM power steering systems, removing the guesswork from maintaining your vehicle’s power steering. 

Prestone Power Steering Fluid

Designed for use in almost every make and model, Prestone Power Steering Fluid comes in the signature bright yellow bottle, available in multiple sizes ranging from 12 ounces to one gallon. 

Like many power steering fluid options on our list, Prestone’s Power Steering Fluid features corrosion inhibitors, seal protection agents, and anti-wear elements that silence noisy power steering pumps. If you think your power steering system might be leaking, Prestone also offers this product with Stop Leak to potentially solve the problem. 

Can You Use Automatic Transmission Fluid Instead of Power Steering Fluid? 

Like many types of lubricants, automatic transmission fluid (ATF) fulfills a specific function isolated to a particular automotive component. 

While some older vehicles may have called for using ATF within the power steering system, these fluids typically cannot be swapped for one another, as the lack of similar fluid properties can lead to damaged components. 

Your best bet is to abide by the guidelines listed in the owner’s manual to avoid expensive repairs. 

How To Choose the Best Power Steering Fluid for Your Vehicle

The best power steering fluid for your vehicle is one that meets or exceeds the recommendations listed in your owner’s manual. Power steering fluids must be compatible with your vehicle’s corresponding system to promote optimal functionality. 

Failing to use the correct type of power steering fluid can lead to increased wear, potential leaks, and total failure of the power steering system. 

Power Steering Fluid Maintenance Tips

Checking power steering fluid levels regularly ensures the system has enough clean fluid to function properly. 

Most power steering systems include a reservoir that’s typically mounted near the firewall in the engine bay. Visually inspect the reservoir to determine the fluid levels in relation to the “min” and “max” markings (or similar equivalents). 

Most automotive manufacturers recommend flushing the power steering system approximately every 50,000 miles. However, you should also flush the system if you notice any contamination or changes in color. 

Store excess power steering fluid in a tightly sealed container out of direct sunlight, and dispose of it properly if it becomes contaminated or reaches the expiration date. 

Cadence: Delivering Value With Every Turn of the Wheel

While power steering fluid may not be the most essential fluid your vehicle requires to function, it contributes greatly to the modern driving experience. The experts at Cadence recognize the value of high-quality power steering fluid in helping you navigate the inevitable twists and turns ahead. 

Call us at 336-629-2061 to speak with a friendly representative about sourcing high-quality power steering fluid, available in both small quantities and bulk. 

Sources:

Power Steering Fluid Maintenance & Symptoms | RepairPal

Power Steering - How Car Steering Works | HowStuffWorks

Hydraulic Fluids | Public Health Statement | ATSDR

AUTOMATIC TRANSMISSION FLUID | The Petroleum Quality Institute of America