Crossover owners Nissan Murano second generation (Z51 body) are often faced with the need to service the power steering system. This machine is famous for its comfortable operation, but the hydraulic system requires careful attention to the quality of the working fluid. Choosing the wrong oil can result in a noisy pump, stiff steering, or costly steering rack repairs.
Many car enthusiasts mistakenly believe that any red liquid can be poured into the power steering. However for Nissan Murano Z51 the manufacturer has established strict requirements for the viscosity and chemical composition of the lubricant. Ignoring these rules leads to accelerated wear of the sealing rings and failure of the high-pressure pump. In this article we will analyze in detail which fluid is suitable for your car.
Official specifications and requirements of the manufacturer
Factory Nissan for model Murano Z51 recommends using exclusively specialized liquid. The main tolerance specified in the technical documentation is Nissan PSF (Power Steering Fluid). This is a red semi-synthetic fluid, designed specifically to work under high loads and temperatures typical for hydraulic systems of Japanese cars.
Using an inappropriate lubricant can upset the balance of additives that protect the metal from corrosion and wear. It is important to understand that the power steering system is Murano - this is a closed loop with thin channels in the steering rack. Any deviation from the standard results in clogging or cavitation. If you plan to add fluid, make sure it meets the specifications indicated on the expansion tank cap.
In some cases, it is permissible to use analogues, but only if they fully comply with the specifications JIS K 2233. This is a Japanese industry standard that guarantees the required viscosity at low temperatures. Conventional ATF (transmission oil) may not provide the required performance, especially in cold weather when thick fluid creates excess pressure on the pump.
- π Official Specification: Nissan PSF red
- βοΈ Low temperature fluidity: critical for winter operation
- βοΈ Compatible with seals: prevents swelling of rubber rings
β οΈ Attention: Never mix liquids from different manufacturers, even if they are both red. The chemical composition of the additives can react to form a residue that will clog the pump filter.
Popular analogues and compatible liquids
Although the original liquid Nissan PSF is the best choice, it is not always available in the nearest store. Fortunately, there are a number of high-quality analogues on the market that fully satisfy the requirements Murano Z51. The main condition is the presence of JASO M315 or JIS K 2233 Class 3 approval on the packaging. These markings confirm that the product has been tested for compatibility with Japanese steering systems.
Many owners have success using automatic transmission fluid (ATF), but with great caution. For example, ATF Dexron II or ATF Dexron III may be suitable in an emergency situation, as they have similar properties. However, for constant use it is better to choose a specialized power steering fluid. Mixing ATF and PSF is possible only as a last resort for topping up, but it is better to carry out a complete replacement on the original.
Among the brands that have proven themselves as reliable alternatives are: Idemitsu PSF, Pentosin CHF 11S (with caution, check compatibility) and Febi Bilstein. When choosing, pay attention to the packaging: it should clearly indicate the use in steering systems. Do not buy products from unknown brands, as the risk of counterfeiting is too great.
- π’οΈ Idemitsu PSF: high-quality Japanese analogue, often delivered to the assembly line
- π©πͺ Pentosin CHF 11S: high-quality synthetics, but requires approval testing
- π§ Febi Bilstein: a reliable European brand with a wide range
- Original Nissan PSF
- Analog (Idemitsu, Febi)
- ATF Dexron
- I don't know, I'm just adding
- Other
Procedure for changing oil in the power steering system
Replacing fluid in the power steering system Nissan Murano Z51 - This is a procedure that you can perform yourself if you have a minimum set of tools and access to a pit or lift. The process does not take much time, but requires care, since the system is under pressure. Before starting work, be sure to turn off the engine and allow it to cool slightly to avoid burns from hot fluid.
The first step is to drain the old fluid. To do this, you need to unscrew the lower hose on the pump or rail (depending on the configuration) and drain the contents into a container. Then you need to bleed the system by turning the steering wheel from lock to lock several times with the front wheels hanging out. This will help remove any old grease from the steering gear and hoses.
After draining, the old oil must be replaced with new one. Fill the expansion tank with fresh fluid to the level MAX. Start the engine and let it idle, keeping an eye on the level in the reservoir. If the level drops, add fluid until it stops dropping. Then turn the steering wheel again to make sure there are no air pockets in the system.
βοΈ Preparing to change the power steering oil
Signs of malfunction and need for replacement
You can determine when itβs time to change the power steering oil based on a number of characteristic signs. The most obvious symptom is a hum or squealing sound when turning the steering wheel, especially at low speeds or while standing still. This indicates that the pump is overloaded due to loss of properties of the working fluid. It is also worth paying attention to the color of the oil: if it turns black or cloudy, this is a sign of oxidation and contamination of the system.
Another warning sign is the appearance of vibration in the steering wheel. This may indicate the presence of air in the system or that the fluid has lost its lubricating properties. In such cases, the steering wheel may become too tight or, conversely, βfloatingβ. Regular diagnostics of oil level and quality will help to avoid costly steering rack repairs.
If you notice leaks under the car in the area of ββthe front axle, this may be the result of seal failure due to poor quality or old fluid. In this case, changing the oil may not help, and the seals or repair kit will need to be replaced. Do not ignore even small traces of oil on the asphalt, as this can lead to complete failure of the power steering.
β οΈ Attention: If you hear a grinding or metallic knock when turning the steering wheel, immediately stop using the vehicle and contact a service center. This may indicate critical wear on the pump or rack.
Features of operation in winter
Winter operation Nissan Murano Z51 imposes additional requirements on the choice of power steering oil. At low temperatures, the liquid must remain fluid so that the pump can pump it through the system. If the oil thickens, the pump may run dry, leading to rapid failure. Therefore, it is important to choose products with a low viscosity index at low temperatures.
Many drivers are faced with the fact that after starting in the morning the steering wheel becomes very tight. It is normal if the fluid is cold, but if it lasts for a long time, then the oil is not suitable for the climatic conditions. In winter, it is recommended to use synthetic oils, which better retain their properties in cold weather. It is also worth warming up the engine before driving, allowing the oil to warm up and circulate throughout the system.
It is important to note that in severe frosts you should not suddenly turn the steering wheel all the way. This creates a peak load on the pump, which may not be able to cope with pumping the thickened liquid. It is better to let the system warm up and move smoothly. Choosing the right oil and careful driving in winter will extend the life of your power steering system.
- π₯Ά Low freezing point: choose oils for the winter season
- π₯ Warming up the engine: a mandatory procedure before traveling in cold weather
- π« Avoiding stops: do not hold the steering wheel in the extreme position for long
Before the onset of winter, be sure to check the level and condition of the oil in the power steering. Old oil can freeze and damage the pump at the first hard frost.
Compatibility table and selection recommendations
To make it easier to choose the right liquid, we have prepared a table that contains the main parameters and compatible products. This information will help you quickly navigate the assortment of stores and choose the appropriate option for your Murano Z51. Please note that using unsuitable oils may void the warranty (if the vehicle is still under warranty) and cause component failure.
| Liquid type | Color | Compatible with Murano Z51 | Note |
|---|---|---|---|
| Nissan PSF (Original) | Red | β Full | Recommended by the factory |
| Idemitsu PSF | Red | β Full | Direct analogue, often cheaper |
| ATF Dexron II/III | Red | β οΈ Partial | For emergency topping only |
| Pentosin CHF 11S | Light yellow | β With caution | Check JASO M315 approval |
| Mineral oil | Various | β Prohibited | Destroys rubber seals |
When choosing oil, always check the operating instructions for your car. If you have lost your service book, look for the information on the power steering reservoir cap. There is often a specification that must be followed. Do not rely on advice from friends or garage neighbors, as requirements for different models may vary, even within the same brand.
What to do if you mix up the type of oil?
If you accidentally add incompatible fluid, do not start the engine. Remove the reservoir, drain the low-quality oil and flush the system with clean liquid. It is best to immediately contact the service for a complete flush.
Results and recommendations for maintenance
The correct choice and timely replacement of power steering oil is the key to safe and comfortable driving. Nissan Murano Z51. Do not skimp on the quality of the lubricant, as the cost of repairing the steering system significantly exceeds the price of high-quality fluid. Check the oil level and condition regularly to avoid unexpected breakdowns on the road.
Remember that the power steering system requires attention not only when changing the oil, but also during diagnostics. Any extraneous noise, vibration or leakage is a reason for an immediate visit to a specialist. Timely maintenance will extend the life of your car and keep its handling at a high level.
Follow the manufacturer's recommendations and use trusted brands. This ensures that your Murano will delight you with smooth steering and confident control in any road conditions. Taking care of the technical details of your car is an investment in your safety and comfort.
Using original Nissan PSF fluid or certified analogues with JASO M315 approval is the only correct solution for the Murano Z51 power steering system.
How often do you need to change the power steering oil on a Nissan Murano Z51?
The recommended replacement interval is every 60,000 - 80,000 km. However, if you operate the car in difficult conditions (dirt, frost, city traffic jams), you should change the oil more often, approximately once every 40,000 km.
Is it possible to mix different brands of power steering oils?
Mixing oils from different manufacturers is not recommended, since the chemical composition of the additives may differ. In an emergency, you can add oil of the same specification (for example, red and JASO M315), but it is better to carry out a complete replacement with only one brand.
How to determine that the oil in the power steering has become unusable?
Main signs: dark color (black or dark brown), unpleasant burning, presence of metal shavings or foam. Problems are also indicated by pump noise and a stiff steering wheel.
What happens if you fill regular gear oil with ATF instead of PSF?
In the short term, nothing bad will happen, but ATF has different viscosity characteristics and additives. Long-term use may cause wear on the seals and pump. It is better to use a specialized liquid.
Where is the power steering reservoir located on the Nissan Murano Z51?
The reservoir is located in the engine compartment on the passenger side (for right-hand drive versions) or on the driver's side (for left-hand drive versions), next to the washer reservoir. It has a cover with a picture of a steering wheel.