CVT oil for Nissan Murano Z51: how to choose and replace without risk to the gearbox

CVT Nissan Murano Z51 (2015–2023) is one of the most technologically advanced, but also capricious transmissions in the Japanese brand’s lineup. Its service life directly depends on the quality and timeliness of oil changes, and errors in the choice of fluid or maintenance procedure can result in expensive repairs. Owners often face a dilemma: to fill in the original NS-3 or suitable analogues, change partially or completely, and how to recognize the first signs of oil wear.

This article contains an analysis of all the nuances: from official requirements Nissan to proven life hacks. We analyzed data from service manuals, owner reviews from forums (including Drive2 And MuranoClub), as well as recommendations from dealerships. We will pay special attention critical errors when changing the oil, which lead to slippage of the variator belt after 20–30 thousand km.

Official Nissan requirements: what kind of oil was filled from the factory

From factory to CVT Nissan Murano Z51 (models with engines VQ35DE And QR25DE) is filled exclusively liquid NS-3 (article KLE52-00004). This is a synthetic oil with a unique additive package, designed specifically for CVTs. Jatco JF016E/JF017E, which are installed on Murano, Pathfinder And Infiniti QX60.

According to the service bulletin Nissan NTB13-079a, use of any other liquid (including NS-2 or universal ATF) leads to:

• 🔹 Accelerated wear steel belt and variator cones due to insufficient protection against microscuffs.
• 🔹 Increased friction in the hydraulic converter, which is manifested by jerks during acceleration.
• 🔹 Loss of properties at high temperatures (over 120°C), characteristic of Murano Z51 when towing or driving in mountainous areas.

Important: even original NS-3 has a limited service life. In the manual Nissan replacement interval indicated - every 90,000 km or once every 6 years (whichever comes first). However, for regions with extreme climatic conditions (severe frost or heat), dealers recommend reducing the interval to 60,000 km.

⚠️ Attention: If non-original oil has already been used in the variator (for example, Idemitsu CVTF or Ravenol CVT), mix it with NS-3 it is impossible. Will be required complete replacement with flushing the system - partial topping up will lead to a chemical reaction and the formation of sediment.

Analogues of NS-3: what can be filled instead of the original

Original liquid NS-3 is expensive (from 1,200 rubles/liter), so many owners are looking for alternatives. Based on test results from independent laboratories (including Oil-Club) and reviews from forums, the following analogues are allowed:

Brand	Liquid name	Article	NS-3 compatible	Price for 1 liter, rub.
Idemitsu	CVTF Type NS-3	30054003-004	Full	950–1 100
Ravenol	CVT Fluid J1	4014835734517	Partial (requires shorter replacement interval)	800–900
Mitsubishi	DIA Queen CVT Fluid J4	MZ320266	For complete replacement only	1 000–1 200
Liqui Moly	CVT Fluid	20002	Not recommended (risk of foaming)	700–850

Among the owners Murano Z51 most popular Idemitsu CVTF NS-3 — its composition is identical to the original (produced at the same plant in Japan), but costs 15–20% less. Ravenol J1 often praised for its improved anti-friction properties, however, when using it, it is necessary to change the oil every 50,000 km.

Critical: cannot be used liquids with markings NS-2 (For example, Nissan Matic S) or universal ATF (type Dexron VI). They have a different viscosity and do not provide the necessary protection variator chains from stretching.

Replacement frequency: when to change the oil in the variator

Official regulations Nissan — 90,000 km or 6 years — relevant only for ideal operating conditions. In reality, the interval depends on:

• 🚗 Riding style: frequent sharp acceleration and braking reduce oil life by 30–40%.
• 🌡️ Climate: At temperatures below -30°C or above +35°C, the oil degrades faster.
• 🏔️ Road conditions: Driving off-road or in mountainous areas increases the load on the variator.
• 🔄 Towing: even occasional transportation of a trailer requires reducing the interval to 50,000 km.

Practice shows that the optimal interval for Murano Z51 — 60,000 km or once every 4 years. Signs that it's time to change the oil regardless of mileage:

• 🔴 Appearance jerks during smooth acceleration (especially at speeds of 40–60 km/h).
• 🔴 Lag reaction to the gas pedal (more than 1 second).
• 🔴 Hum or whistle from the variator area to cold.
• 🔴 Darkening of the oil (checked with a dipstick) or appearance burnt smell.

⚠️ Attention: If the variator dipstick shows metal shavings or the oil has the consistency of “condensed milk”, this is a signal critical wear chains or cones. In this case, diagnostics is required Nissan Consult — further operation without repair will lead to jamming of the variator.

Partial vs full replacement: what to choose

In the variator Murano Z51 circulates around 10–11 liters oil, but during partial replacement it only drains 4–5 liters (the same amount of new ones is poured). A complete replacement requires special washing equipment and costs 2–3 times more. Which option should I choose?

Replacement type	Pros	Cons	Recommendation
Partial	✅ Cheaper (from RUB 3,000 with work) ✅ Faster (30–40 minutes)	❌ Up to 50% of old oil remains ❌ Does not remove deposits in the hydraulic unit	Suitable for regular replacement every 30–40 thousand km
Full	✅ 100% oil renewal ✅ Flushing the system from sludge	❌ Expensive (from 8,000 rub.) ❌ Risk of damage to seals due to improper flushing	Mandatory when changing oil type or after 100,000 km

If the variator was operated on the original NS-3 and the oil was changed every 60,000 km, enough partial replacement. But there are nuances:

• 🔧 For partial replacement necessarily remove the tray and clean the magnets (metal shavings accumulate on them).
• 🔧 If the oil is heavily contaminated, you will need double partial replacement: drain/fill, drive 500 km, repeat the procedure.

A complete replacement is justified in the following cases:

• 🔹 Buying used Murano Z51 with unknown service history.
• 🔹 Switching from non-original oil to NS-3.
• 🔹 Errors appear P0776 (solenoid malfunction) or P0841 (pressure problems in the variator).

Buy 6 liters of oil (for partial replacement)|Purchase a new variator filter (article 31726-31X00)|Prepare a container for draining (at least 5 liters)|Warm the car to operating temperature|Provide access to a pit or lift-->

Step-by-step instructions for changing the oil

To change the oil in the variator Nissan Murano Z51 you will need:

• 🔧 Tools: 10 mm wrench, 14 mm socket, funnel with narrow spout, torque wrench.
• 🛢️ Materials: 6 l oil NS-3, new filter (31726-31X00), pan gasket (31397-31X02), sealant Loctite 574.
• 📋 Additionally: rags, gloves, drainage container.

Step 1. Drain the old oil

1. Start the engine and warm up the variator until 60–70°C (2–3 minutes of idling with the selector switching through all modes).
2. Lift the car on a lift or drive it into a pit. Remove the crankcase protection (if equipped).
3. Place a container under the drain plug (it is located on the variator tray) and unscrew it with a 14 mm wrench.
4. Wait until the oil is completely drained (about 10–15 minutes). Pay attention to the color and presence of metal shavings.

Step 2. Replacing the filter and cleaning the pan

1. Unscrew the 18 pan bolts (10 mm head) and carefully remove it. Be careful - about 0.5 liters of oil remains in the pan.
2. Clean the magnets from shavings and wash the tray with kerosene or a special cleaner (Liqui Moly Schnell-Reiniger).
3. Replace the variator filter (it is located inside the box, secured with 3 bolts).
4. Install the new pan gasket, applying a thin layer of sealant to the joints.

Step 3. Filling with new oil

1. Screw the drain plug with a new sealing ring (tightening torque - 35 Nm).
2. Insert a funnel into the filler hole (it is located on top of the variator, under the hood) and fill 4.5–5 liters new oil.
3. Start the engine and let it idle for 2-3 minutes, alternately switching the selector to all positions (P → R → N → D).
4. Check the oil level with a dipstick - it should be between the marks HOT MIN And HOT MAX.

⚠️ Attention: If after changing the oil quickly darkens (within 1,000 km), this is a sign severe wear of clutches or clogged valve body. In this case, diagnostics is required Nissan Consult III+ — further operation without repair will lead to failure of the variator.

What to do if you pour oil into the variator?

If the oil level is above the mark HOT MAX, it is necessary to drain the excess through the drain plug. Overfilling causes the oil to foam, which causes:

- Loss of pressure in the valve body (jerks when switching).

- Accelerated wear of the variator pump.

- Risk of squeezing out seals.

To drain excess, use a syringe with a tube or carefully unscrew the drain plug 1-2 turns.

Common mistakes when changing oil

Even experienced craftsmen make mistakes that reduce the life of the variator Murano Z51. Here are the most critical ones:

1. Using non-original pan gaskets.
   

   Cheap analogues (for example, from Sasic) are often tanned at high temperatures, which leads to oil leakage. Original gasket (31397-31X02) costs about 800 rubles, but guarantees tightness.

2. Incorrect tightening torque for pan bolts.
   

   Padding (more 10 Nm) deforms the pan, and weak tightening causes leakage. Use a torque wrench!

3. Ignoring cleaning of magnets.
   

   If you do not clean the magnets from chips, they will get into the new oil and accelerate chain wear. On some Murano Z51 after 100,000 km, the magnets are literally “covered” with metal dust.

4. Changing the oil without resetting the variator adaptations.
   

   After replacing the fluid, you must reset the adaptive settings of the variator via Nissan Consult or scanner Launch X431. Without this, the box will operate in “emergency” mode for the first 200–300 km.

Another common mistake is use of flushing fluids (type Wynns CVT Cleaner). In CVTs Nissan they are contraindicated, as they have an aggressive effect on rubber seals and can cause oil seals to leak.

Signs of oil and variator wear: when to sound the alarm

Oil in the variator Murano Z51 degrades gradually, and the first symptoms are often ignored. Look out for the following signs:

Symptom	Probable Cause	Actions
Jerking during acceleration (especially at speeds of 30–50 km/h)	Worn clutches or clogged valve body	Checking the oil for contamination, replacing with flushing
Delay when switching from D on R (more than 1.5 sec)	Low pressure in the hydraulic system or pump wear	Pressure diagnostics (normal: 4.5–5.5 bar)
Rumbling or whistling when cold	Worn shaft bearings or variator chain	Checking the oil level, replacing and inspecting the pan
Burnt smell from oil	Overheating of the CVT due to towing or aggressive driving	Complete oil change + radiator check
Error P17F0 (variator circuit malfunction)	Critically worn chain or cones	Overhaul of the variator (replacement of chain, cones, solenoids)

If the variator begins to become “stupid” or jerks appear, first check oil level and condition. To do this:

1. Warm up the box (drive 10–15 km).
2. Place the car on a level surface.
3. With the engine running, move the selector to all positions, then return to P.
4. Take the dipstick out, wipe it, put it back in and take it out again. The level should be between HOT MIN And HOT MAX.

If the oil is dark (almost black) or has a burning smell, it is required immediate replacement. Delaying this process by 5–10 thousand km may result in the repair of the variator for 150,000–200,000 rub.

FAQ: Frequently asked questions about Murano Z51 CVT oil

Is it possible to mix NS-3 with analogues (for example, Idemitsu)?

No, you cannot mix. Even if the compositions are identical (as in Idemitsu CVTF NS-3), additives may react, resulting in the formation of sediment. If you need to add oil, use only the same brand that was added previously.

How much oil is needed for a complete change?

For a complete replacement with flushing you will need 12–14 liters oils NS-3. For partial replacement, it is enough 5–6 liters (~4.5 liters are drained, the same amount is filled in).

How often should the CVT filter be changed?

Variator filter (31726-31X00) it is recommended to change every second oil change (i.e. every 120,000 km). However, if the oil is heavily contaminated or there are a lot of chips in the pan, the filter is replaced at every fluid change.

Is it possible to drive with an oil level below MIN?

Absolutely not. Low oil level leads to oil starvation pump and variator chain, which causes their accelerated wear. If the level drops below MIN, add oil to the specified level and check the box for leaks (possible leakage through the seals or pan gasket).

Which is better: the original NS-3 or Idemitsu?

By composition Idemitsu CVTF NS-3 identical to the original (produced at the same plant in Japan), so there is no difference in the protection of the variator. The choice depends on availability and price: Idemitsu usually 15-20% cheaper. The main thing is to buy oil from official dealers to avoid counterfeits.