Which engine oil to choose for Nissan Murano Z51: expert guide

Crossover owners Nissan Murano second generation (Z51 body) are often faced with a dilemma when servicing power units. The VQ35DE and VQ35HR series engines fitted to this model are known for their power and responsiveness, but they are also extremely demanding on the quality of lubricants. The wrong choice can lead to rapid wear of hydraulic compensators, noise and even major repairs.

Operation in difficult climates and urban traffic leaves its mark on lubrication requirements. You need to understand the differences between tolerances, viscosity and base oil components to ensure reliable engine operation over 200 thousand kilometers. Ignoring the manufacturer's recommendations often becomes a fatal mistake.

In this article we will look in detail at what motor oil suitable for Nissan Murano Z51, how often it needs to be changed and what parameters to pay attention to when purchasing. We will cut out the marketing gimmicks and focus on the real technical requirements of Japanese engineers.

Technical requirements for lubrication of VQ35 engines

The VQ engine series under the hood of your crossover has a unique design. It uses a CVTC phase shifter and thin oil channels, which places high demands on the fluidity and stability of the lubricant. The manufacturer's main recommendation is to use oils with a viscosity 5W-30. It is this parameter that provides a balance between cold start and protection of parts at operating temperature.

For regions with severe winters, where temperatures drop below -20°C, use 5W-40, however, this should be the exception and not the rule. Thicker oil can make it difficult to pump through the narrow channels of the variable valve timing system, which will lead to errors in the camshaft position sensor. In summer or during active driving at high speeds, 5W-30 viscosity works more efficiently, providing better cooling of the piston group.

Compliance with API and ILSAC tolerances is critical. For Nissan Murano relevant standards are no lower API SN or SP. These standards ensure that the additive package contains additives that protect against deposits and wear. The use of outdated specifications (for example, API SL or SJ) is strictly prohibited, as they do not contain the necessary cleaning components for modern engines with a catalyst.

⚠️ Attention: Using 10W-40 or 10W-30 oils on a VQ35DE engine without serious wear problems (such as increased consumption) can lead to ring sticking and rapid failure of timing chain tensioners.

• Be sure to check for permission ILSAC GF-5 or GF-6 on the canister.
• Avoid low TBN oils if you drive frequently in traffic.
• Make sure that the oil is certified by the manufacturer for gasoline engines.

Choosing between synthetics and semi-synthetics

There are many types of motor oils on the market, but for Nissan Murano Z51 the choice is obvious: only fully synthetic oil. Semi-synthetic compounds are not able to provide the necessary stability at high temperatures that arise in the VQ35 engine during active driving. Synthetics retain their properties longer and better protect critical friction units.

Many owners wonder whether it is worth paying extra for oils labeled "Long Life" or "Fuel Economy". These products really help reduce fuel consumption, but their cleaning properties are sometimes inferior to classic synthetic oils. For urban use, where traffic jams and frequent starts are the norm, it is better to choose universal synthetic compounds that actively clean the engine of carbon deposits.

The oil base also plays a role. Oils based on PAO (polyalphaolefins) and esters are considered the best, but they are often more expensive. However for VQ engine it's an investment in durability. Ester oils have a unique property: they create a durable film even after stopping the engine, preventing dry friction the next time it is started.

What is an ester base?

Esters are esters that are highly polar. This means that they are attracted to metal surfaces and adhere to them, creating a protective layer that does not drain into the pan when the car is parked.

Don't forget about the brand. Original from Nissan - this is guaranteed quality, but there are high-quality analogues from global manufacturers, such as Mobil 1, Liqui Moly or Shell Helix. The main condition is the absence of counterfeits and purchase from official distributors. The auto parts market is oversaturated with counterfeit products, which can destroy an engine in one service interval.

• Synthetics provide better protection cold start in winter.
• Semi-synthetics oxidize faster and lose properties in the heat.
• Saving on oil is not justified, since the cost of replacement is lower than the cost of repair.

Replacement intervals and actual mileage

Official routine oil change for Nissan Murano in Russia and the CIS countries it is installed every 15,000 km or once a year. However, if you live in a large metropolitan area, this interval is too high. The urban cycle with constant stops, warming up and idling the engine reduces the life of the oil by half.

Experts strongly recommend reducing the interval to 7,000 – 8,000 km for conditions of intensive urban use. It is this mileage that allows you to maintain the cleaning properties of the oil at the proper level and avoid the accumulation of sludge. On the VQ35DE engine, deposits can cause the hydraulic lifters to jam, which will manifest itself as a metallic clatter.

You need to focus not only on the odometer, but also on the engine hours. If you often get stuck in traffic jams, use an hour meter. Oil changes should occur every 250–300 operating hours. This is especially true in winter, when the engine runs for a long time in warm-up mode and the oil does not heat up to operating temperature, which contributes to water condensation in the crankcase.

⚠️ Attention: If you notice that the oil level is dropping faster than 1 liter per 10,000 km, immediately check the engine for leaks or burns. This may indicate worn piston rings or valve seals.

Replacement procedure and service details

Oil change process Nissan Murano Z51 has its own characteristics that are important to observe. Access to the oil filter may be difficult depending on the presence of the crankcase guard. Often the filter is located in a hard-to-reach place, and replacing it requires a special puller or dismantling of the plastic elements of the fender liner.

When draining old oil, be sure to replace the drain plug and its copper washer. Reusing the washer may cause the seal to fail and subsequently leak. Clean the plug itself from magnetic deposits, if it is magnetic, in order to assess the condition of the internal engine components by metal shavings.

Fill the oil through a funnel to avoid dirt getting in. After filling, start the engine and let it idle for 2-3 minutes. This is necessary to fill the oil passages and check the pressure. Then turn off the engine, wait 5-7 minutes and check the level with a dipstick. The level must be between the marks Low and Full, closer to the mark Full.

Don't forget to reset the service light if your vehicle is equipped with this feature. This is done through the dashboard menu or a combination of buttons on the steering wheel and instrument panel. The indicator does not affect engine operation, but helps control the maintenance schedule.

• Replace the oil filter at every oil change, no exceptions.
• Use only original filter Nissan or high-quality analogues.
• Check the tightness of the drain plug with a torque wrench (usually 25-30 Nm).

The problem of oil consumption and waste

One of the common problems with VQ35DE engines is increased oil waste. This phenomenon can be caused by several factors: stuck piston rings, worn valve stem seals, or the use of low-quality oil with low volatility. If the consumption exceeds 1 liter per 1000 km, this is a malfunction signal.

Often the problem is solved not by a major overhaul, but by changing the type of oil. Some owners note that switching from 5W-30 viscosity to 5W-40 or even 5W-50 (for older engines with high mileage) reduces waste. However, this is a temporary measure that masks wear rather than eliminating its cause.

It is important to check the oil level regularly. VQ engines do not have real-time level control, and you may not notice a drop in level until serious failure occurs. Regular checks once a week are the key to long engine life. Ignoring a low oil level can lead to scoring in the cylinders within a few kilometers.

It is also worth paying attention to the crankcase ventilation system. A clogged PCV (Positive Crankcase Ventilation) valve creates excess pressure in the crankcase, which pushes oil through the seals and increases its waste. Checking and replacing this valve is a simple and inexpensive procedure that can make a significant difference.

Parameter	Recommendation for Z51	Permissible deviations
Viscosity (SAE)	5W-30	5W-40 (winter/heat)
Oil volume (with filter)	4.9 liters	± 0.2 liters
API clearance	SN / SP	SM (obsolete)
Replacement interval	7,000 - 10,000 km	15,000 km (according to regulations)

Frequent mistakes when choosing and using

Many owners make the mistake of choosing oil solely based on price or on the recommendation of friends, without taking into account the specifics of the engine. The use of diesel engine oils (labeled C or E) is not recommended as they contain other additive packages that can harm a gasoline engine with a catalyst.

Another mistake is mixing oils of different brands and types. If you have to add oil on the road, it is better to use distilled water or oil of the same viscosity, but from the same manufacturer. Mixing different additive packages can cause a chemical reaction and sediment that can block oil passages.

You should also not blindly trust “engine additives,” which are often advertised as a panacea for all ills. Modern oils already contain a balanced package of additives. Adding third party chemicals can upset this balance. In most cases, good oil flushing and changing procedures will produce better results than any additives.

⚠️ Attention: Never add “sealants” or “reducers” to oil if there are leaks. This is a temporary solution and often causes the oil pump and oil filter to become clogged.

FAQ: Answers to popular questions

Which oil is better: original Nissan or an analogue?

Original oil Nissan guaranteed to meet plant specifications, but often produced by large petrochemical companies (eg Idemitsu). High-quality analogues from Shell or Mobil may even be better than the original in terms of cleaning properties if you buy them from an authorized dealer. The main thing is not to run into a fake.

Is it possible to use 0W-20 oil in Murano Z51?

For VQ35DE and VQ35HR engines, 0W-20 viscosity is not recommended unless specified in the specification for the specific year and region. Thinner oil may not provide sufficient protection under the high loads and temperatures encountered with this engine. It's better to stick with 5W-30.

How much oil is needed for a complete change?

When replacing with an oil filter in the engine Nissan Murano Z51 About 4.9 liters of oil are poured. Therefore, it is recommended to purchase a 5 liter canister. The remaining oil should be left for topping up during the service interval.

How often should the oil filter be changed?

Oil filter Nissan must be changed at every oil change. Ignoring this rule results in the clogged filter being bypassed (the bypass valve opens), and unfiltered oil circulates through the engine, causing rapid wear.

What to do if the oil pressure light comes on?

Stop the engine immediately! Operating with the oil pressure light on can cause the engine to seize within minutes. Check the oil level, and if it is normal, call a tow truck and go to a service center for diagnostics.