Crossover owners Nissan Murano second generation (Z50 body), produced between 2003 and 2007, are often faced with the need to service the transmission. The Jatco JF011E variator (also known as RE0F10A) is a reliable unit, but extremely demanding on the quality and volume of the working fluid. The wrong amount of oil can lead to overheating, belt slippage and costly repairs.
Many car owners mistakenly rely on general data on transmissions, without taking into account the design features specifically for Nissan Murano with V6 3.5 liter engine. In this article, we will analyze how much oil is in the Nissan Murano Z50 CVT during a full and partial replacement, how to correctly perform the procedure, and what nuances exist for this model.
Ignoring the replacement regulations can be fatal to the gearbox. CVTs of this era do not have a dipstick for checking the level in the usual sense, which requires the use of special diagnostic equipment and adherence to temperature conditions. An error in calculating the volume of liquid on this crossover is unacceptable.
Technical characteristics of the Jatco JF011E variator
The heart of the transmission system Nissan Murano The Z50 is a Jatco JF011E CVT. This device operates on the principle of continuously variable transmission of torque through a metal belt and cones. A special feature of this model is the absence of classic gear stages, which requires the use of a special fluid with unique friction properties.
The design of the unit includes a hydraulic unit, a pump and a cooling radiator integrated into the engine cooling system. It is the torque converter and radiator that hold a significant volume of working fluid, which must be taken into account during maintenance. The volume of the system depends on whether we are talking about a partial update or a complete flush.
For the variator to operate correctly, it is critical to maintain the pressure in the system at a certain level. This is ensured by a pump that pumps oil through a complex system of channels. If the fluid volume is below normal, the pump traps air, which leads to cavitation, pressure drop and rapid wear of the clutches.
It is important to note that the factory regulations for Nissan Murano Z50 requires the use of only original Nissan NS-2 fluid. Attempts to replace it with analogues or mix it with other types of fluids (for example, NS-3 or Dexron) are strictly prohibited, as this will change the viscosity and friction characteristics, which will lead to failure.
Exact oil volume: complete and partial change
The most common question that owners ask concerns how many liters of oil to fill. For Nissan Murano Z50 with a 3.5 liter engine, the data is as follows: with a partial replacement (without removing the pan), the volume is about 4.5–5 liters. This procedure only renews part of the fluid, since a significant portion remains in the torque converter.
With a complete replacement, which includes removing the pan, replacing the filter and flushing the system, the total volume of oil in the Nissan Murano Z50 CVT reaches 8.5–9 liters. However, if pressure replacement is used, the volume may vary depending on the technique used to displace the old fluid.
It is necessary to understand that the filling volume depends on the ambient temperature and the condition of the sealing elements. When dismantling the pan, part of the fluid flows out by gravity, but a significant volume is retained in the torque converter and radiator. That is why, when completely replacing, several stages of topping up are often required.
A special feature of the model is the presence of two levels of testing: hot and cold. The final topping up is carried out only when the operating temperature of the transmission is reached. To underfill or overfill liquid means creating a risk of failure of the entire system. The total volume of the variator lubrication system is 9.2 liters, but during the standard replacement procedure about 8.6 liters are filled.
Selecting transmission fluid and filter
The correct choice of consumables is the key to a long life of the variator. For Nissan Murano Z50 manufacturer recommends using original fluid Nissan NS-2. This is a specialized CVT Fluid, designed to meet the friction and viscosity requirements specifically for Jatco units.
Analogues from third-party manufacturers (such as Motul, Idemitsu, Shell) can be used, but only with direct NS-2 certification. It is important to check the labeling on the canister. The use of universal transmission oils is unacceptable, since they do not provide the required friction coefficient for the steel belt and cones.
In addition to the oil, it is critical to replace the fine filter and coarse mesh. Filter in the variator Nissan Murano The Z50 is located inside the tray and has a paper element that becomes clogged with wear and tear over time. Ignoring its replacement negates the entire oil renewal procedure.
When purchasing oil, you should focus on the volume you plan to fill. For a partial replacement, 5 liters are enough; for a complete replacement, it is better to take 9 liters with a reserve. Do not skimp on original consumables, since the cost of repairing a variator is many times higher than the price of high-quality fluid.
- ✅ Use liquid only Nissan NS-2 or certified analogues.
- ✅ Be sure to change the filter and pan gasket at every service.
- ✅ Check the condition of the drain plug sealing rings.
- Partial (without removing the pan)
- Full (with removal of the pallet)
- Hardware replacement
- Haven't changed it yet
Instructions for changing the oil in the variator
The oil change procedure requires certain preparation and tools. The vehicle must be placed on a flat surface or a lift. To access the variator pan, it is necessary to remove the crankcase protection. It is better to carry out work in a warm room, especially in the cold season.
The first step is to drain the old fluid. To do this, you need to unscrew the drain plug located on the pan. Place a container with a volume of at least 5 liters. After complete drainage, you need to dismantle the pan by unscrewing the fastening bolts. Be careful, as there will still be about 1-1.5 liters of oil left in the pan.
Next, you need to clean the pan from metal shavings and old sealant. Magnets on the tray collect wear products; they must be thoroughly rinsed in solvent. Replace the filter by snapping off the old one and installing the new one. Reinstall the pan using a new gasket or apply sealant according to the instructions.
Fill in new fluid through the dipstick hole (if your modification has one) or through the level sensor hole. For complete filling, use a funnel with a flexible hose. Fill the initial volume of about 4-5 liters. After this, start the engine and let it idle.
☑️ Preparing for an oil change
Checking the oil level: procedure and nuances
Checking the oil level in the variator Nissan Murano The Z50 is a critical milestone that cannot be ignored. Unlike manual transmissions, there is no simple feeler gauge for visual assessment. The level is controlled through the control plug on the sump while the engine is running.
The procedure requires compliance with the temperature regime. The liquid must warm up to operating temperature (usually 50-60°C). If the temperature is too low, the level will be lower than normal, and if it is overheated, it will be higher. For an accurate measurement, a scanner is needed that reads the oil temperature through a sensor.
With the engine running and mode on P (Parking) the control plug is unscrewed. If the oil starts to drip, the level is sufficient. If the oil does not flow, it must be added. If the oil flows in a strong stream, it means it is overflowing and the excess needs to be drained.
Pay particular attention to keeping the engine idling during the test. Shifting gears in all modes with a delay of several seconds is also recommended to fill the system and torque converter channels. Only after this can a final level check be carried out through the inspection hole.
⚠️ Attention: Never check the oil level on a cold engine without taking into account correction factors. This will lead to an error and overflow of fluid when warming up, which can lead to squeezing out the seals and getting oil on the belt.
What to do if the level is not set?
If the level does not stabilize while the engine is running, this may indicate a malfunction of the oil pump or the presence of air in the system. Try shifting the gear selector from P to D and back several times, holding each position for 3-5 seconds.
Frequent maintenance errors
One of the most common mistakes is using low-quality fluid or mixing different types of oils. Even a small amount of other fluid can disrupt the friction properties, which will lead to belt slippage and rapid wear. Always follow the labels Nissan NS-2.
Another mistake is ignoring filter replacement. Many car owners believe that if the oil is fresh, then the filter can be left alone. This is a misconception: the old filter is clogged with metal and dirt particles, which restricts oil flow and creates cavitation. A clogged filter is one of the main reasons for overheating of the variator.
It is also common to underfill or overfill oil. Overfilling is dangerous because the rotating parts begin to whip up the oil, saturating it with air bubbles. This reduces the pressure in the system and leads to jerks when switching modes. Underdolite, in turn, leads to oil starvation and overheating.
Ignoring the condition of seals and gaskets can also lead to problems. If the pan is not pressed tightly, oil will leak and dirt and moisture will get inside. Regularly inspect the underside of your car for signs of leaks after each oil change.
| Parameter | Meaning | Note |
|---|---|---|
| Volume for partial replacement | 4.5 - 5.0 l | Without removing the pallet |
| Volume for complete replacement | 8.5 - 9.2 l | With pan and filter removed |
| Liquid type | Nissan NS-2 | Strictly original |
| Operating temperature check | 50-60°C | Control via scanner |
Before starting work, be sure to disconnect the negative terminal of the battery to avoid a short circuit when removing the protection and electrical connectors of the variator sensors.
Symptoms of Incorrect Oil Level
If the oil level in the variator Nissan Murano The Z50 deviates from the norm, the car begins to beep. The first sign may be a jerk when starting off or when switching modes. This indicates unstable pressure in the system.
Noise or humming coming from the transmission is also a warning sign. If a whining or whistling sound is heard, this may indicate that the pump is trapping air due to low oil levels. In this case, you must stop immediately and check the level.
Overheating of the variator is another symptom. When the oil level is low, heat exchange is disrupted and the liquid does not have time to cool. The check engine light or transmission overheating warning may come on on your dashboard. Ignoring this signal may result in deformation of the cones and belt.
There may also be delays when shifting gears. If, after switching the selector to mode D or R, several seconds pass before the car starts moving, this indicates a drop in pressure. The reason could be either a low oil level or a dirty filter.
⚠️ Warning: If you notice jerking or humming, do not continue driving until you check the oil level. Operating a variator with faulty lubrication can lead to its complete failure within a few kilometers.
Regularly checking the level and changing the oil according to regulations is the only way to keep the Jatco JF011E variator in working condition for many years.
FAQ: Frequently asked questions
Can I use NS-3 fluid instead of NS-2?
No, you absolutely cannot use NS-3 fluid in the Nissan Murano Z50 CVT. NS-3 fluid has a different viscosity and friction properties intended for newer models. Using NS-3 will cause rapid wear of the belt and cones, as well as failure of the valve body.
How often should I change the oil in a Z50 CVT?
The recommended replacement interval is every 60,000 km or every 4 years, whichever comes first. When operating in difficult conditions (traffic jams, towing trailers, off-road), the interval should be reduced to 40,000 km.
Do I need to warm up the oil before checking the level?
Yes, checking the level is only possible at operating oil temperature (50-60°C). On a cold engine, the level will be below normal, which will lead to erroneous topping up and subsequent overfilling when warming up. Use a diagnostic scanner to accurately monitor your temperature.
What happens if you pour oil into the variator?
Overfilling the oil causes the rotating parts to foam. Foam does not have sufficient lubricating and transmission properties, which causes pressure drop, overheating and jerking. In the worst case, this can lead to squeezing out the seals and causing the variator to fail.
Is it possible to replace the filter without removing the pan?
No, the fine filter is located inside the pan and is only accessible after removing it. Some models have an external coarse filter, but for a full replacement you need to remove the pan to clean it of metal shavings and replace the gasket.