Changing the oil in a Nissan Almera Classic manual transmission: a complete guide with photos and tips

Nissan Almera Classic is a reliable car, but even its manual transmission requires timely maintenance. Many owners forget that manual transmission oil also ages, loses properties and requires replacement, albeit less often than in the engine. In this article we will look at when and how to change the transmission fluid correctly, which oil to choose for Almera Classic (including models B10 And N16), and what errors can lead to the box breaking.

The manufacturer often claims that the manual transmission is filled with oil for its entire service life, but in practice this is not the case. Operation in city traffic jams, frequent gear changes and high loads accelerate fluid wear. If replacement is ignored, the consequences can be serious: from increased noise and difficult shifting to synchronizer failures or bearings. Below are detailed instructions with nuances for different years of manufacture. Almera Classic.

When to change the oil in an Almera Classic manual transmission: regulations and signs of wear

Official regulations Nissan for Almera Classic does not provide for changing the oil in the manual transmission, but this does not mean that it does not need to be updated. Experienced mechanics recommend carrying out the procedure every 60–90 thousand km or once every 4–5 years, depending on operating conditions. If the car is often used in difficult conditions (towing, off-road, aggressive driving), the interval should be reduced to 40–50 thousand km.

There are also indirect signs that it is time to change the oil:

• 🔊 Increased noise when the gearbox is running, especially in neutral gear.
• ⚙️ Difficulty switching gears, especially when cold.
• 💨 Burning smell from transmission fluid (checked with a dipstick or after draining).
• 🔄 Vibrations or jerking when driving, not related to the engine.

If at least one of these symptoms appears, check the condition of the oil. To do this, just remove the dipstick (if your model has one) or drain some liquid. B Almera Classic with manual transmission RS5F31A (installed on most versions) there is no dipstick - the level is checked through the filler neck. Black color, metal shavings or thick consistency are a signal for urgent replacement.

⚠️ Attention: If large metal particles are found in the drained oil, this may indicate worn gears or bearings. In this case, changing the oil is only a temporary measure, and the box needs to be diagnosed by a specialist.

What kind of oil to fill in the Almera Classic manual transmission: recommendations and analogues

For Nissan Almera Classic manufacturer recommends gear oil API GL-4 with viscosity 75W-80 or 75W-90. Original liquid - Nissan MT-XZ Fluid (art. KE908-99932), but there are also high-quality analogues:

Manufacturer	Oil name	Viscosity	Specification	Article
Nissan	MT-XZ Fluid	75W-80	API GL-4	KE908-99932
Mobil	Mobilube 1 SHC 75W-90	75W-90	API GL-4/GL-5	152624
Castrol	Syntrans Transaxle 75W-90	75W-90	API GL-4+	157F9
Liqui Moly	Getriebeoil 75W-80	75W-80	API GL-4	3031

Important: Do not use oil with specification GL-5 instead of GL-4! It contains more sulfur additives, which can damage synchronizers in manual transmissions. Almera Classic. Also avoid generic oils like ATF — they are intended for automatic transmissions.

Oil volume for a complete change in manual transmission Almera Classic — 2.8–3.0 liters. For a partial replacement (without flushing), it will take about 2.5 liters, since it is impossible to completely drain the old fluid.

Tools and materials for changing oil in manual transmission

To change the oil in a manual transmission yourself Almera Classic you will need:

• 🔧 24mm wrench (for drain plug).
• 🔧 10 mm wrench (to remove the crankcase protection, if equipped).
• 🛢️ Drain container (volume of at least 4 liters).
• 🔄 Funnel with flexible hose (~10 mm in diameter).
• 🧤 Gloves and rags (oil is toxic and difficult to wash off).
• 🔧 Torque wrench (for proper tightening of plugs).
• 🛠️ New oil (3 liters with reserve).
• 🔧 New O-rings for drain and filler plugs (art. 11026-01M02).

If on your Almera Classic crankcase protection is installed, it will have to be removed. In some cases it may be necessary jack or inspection hole, since access to the drain plug is from below.

Step-by-step instructions for changing the oil in the Almera Classic manual transmission

The process of changing the oil in a manual transmission Almera Classic consists of several stages. It is important to follow the order and not skip steps, especially if this is your first time.

1. Preparing the car. Place the machine on a flat surface (pit or lift). If you use a jack, be sure to support the vehicle with jack stands. Remove the crankcase protection (if equipped).

2. Drain old oil. Place a container under the drain plug (it is located on the box housing, closer to the back). Using a 24 mm wrench, unscrew the plug and wait until the oil drains completely. Pay attention to the color and presence of metal shavings.

3. Cleaning plugs and magnet. The drain plug has a magnet that collects metal particles. Clean it and the plug from any dirt. Replace the O-ring if necessary.

4. Filling with new oil. B Almera Classic The filler neck is located on top of the box (under the hood, next to the battery). Remove the plug, insert a funnel with a hose and slowly add oil. Check the level: it should reach the bottom edge of the filler hole.

5. Checking the level. After filling, tighten the plug and start the engine. Warm up the box (change all gears one by one), then check the oil level. Top up if necessary.

Warm up the box (drive 5–10 km)

Prepare tools and container for draining

Make sure the machine is on a level surface

Buy new oil and o-rings -->

Plug tightening torque:

• Drain plug: 35–40 Nm.
• Filler plug: 25–30 Nm.

⚠️ Attention: Don't overtighten the plugs! Excessive force may cause the threads on the aluminum box housing to shear. If the O-ring is damaged, oil will leak.

Common mistakes when changing manual transmission oil and how to avoid them

Even experienced car owners sometimes make mistakes that can shorten the life of the box. Here are the most common:

• 🔧 Wrong choice of oil. Usage GL-5 instead of GL-4 or universal ATF leads to accelerated wear of synchronizers. Always check the specifications on the packaging.
• 🛢️ Incomplete drainage of old oil. If you do not warm up the box before draining, up to 30% of the old fluid will remain in it, which will reduce the effectiveness of the replacement.
• 🔄 Overfilling or underfilling oil. Excess oil leads to foaming and loss of properties, and too little leads to oil starvation. B Almera Classic The level is checked at the filler neck: the oil should be “level” with the lower edge.
• 🧲 Ignoring the magnet on the drain plug. If you do not clean the magnet of metal shavings, they will fall back into the box and accelerate wear.

Another common mistake is oil change without transmission diagnostics. If large metal particles are found during draining or the oil has a strong burning smell, simply replacing the fluid is not enough. In such cases, disassembling the box and replacing worn parts is required.

What to do if after changing the oil there is still noise in the box?

If the noise does not disappear, the following reasons are possible:

1. **Bearing wear** - requires replacement.

2. **Damaged gears** - diagnostics needed.

3. **Poor quality oil** - try another brand with the correct specification.

4. **Insufficient oil level** - check and add if necessary.

If the problem persists, contact a specialist for a detailed check of the manual transmission.

Differences between oil changes in Almera Classic B10 and N16 manual transmissions

Nissan Almera Classic was produced in two main bodies: B10 (1995–2000) and N16 (2000–2006). Although the gearboxes are structurally similar, there are nuances:

Parameter	Almera Classic B10	Almera Classic N16
Manual transmission type	RS5F31A (5-speed)	RS5F31A or RS5F32A (5-speed)
Oil volume	2.8 l	2.8–3.0 l
Availability of a probe	No	No (level is checked through the filler neck)
Recommended oil	API GL-4, 75W-80	API GL-4, 75W-80 or 75W-90
Access to the filler neck	Above, under the hood	From above, but may require removal of ductwork

In models N16 with box RS5F32A (installed on cars with engines QR20DE) oil volume can reach 3.2 liters. Check the type of box using the VIN code or markings on the manual transmission itself.

Also in N16 sometimes occurs filler plug with 24 mm all-key thread, whereas in B10 it is usually hexagonal. Before replacing, check which tool is required for your model.

Is it worth flushing the manual transmission when changing the oil?

Manual transmission flushing Almera Classic - a controversial issue. On the one hand, it helps remove old oil and dirt, but on the other hand, it can be harmful if done incorrectly. Let's look at the pros and cons:

When flushing is needed:

• 🔄 If the oil has not been changed for more 100 thousand km.
• 🧹 If there is a lot of metal shavings or dirt in the drained liquid.
• 🔧 After repairing the box (replacing bearings, gears, etc.).

When flushing is harmful:

• 🚫 If the box is working normally, and the oil is just old.
• 🚫 If the wrong liquid is used for flushing (for example, kerosene or ATF).
• 🚫 If flushing is carried out under pressure (it may damage the seals).

For flushing manual transmission Almera Classic use special transmission flush fluids (for example, Liqui Moly Getriebe-Reiniger) or the same oil that you will fill. Algorithm:

1. Drain the old oil.
2. Fill in the flushing fluid (1–1.5 liters).
3. Start the engine and let it idle for 5-10 minutes, changing gears.
4. Drain the flush and fill with new oil.

⚠️ Attention: Do not use engine or automatic transmission cleaners to flush the manual transmission! They contain aggressive additives that can damage synchronizers and seals.

FAQ: Frequently asked questions about changing the oil in Almera Classic manual transmission

Is it possible to mix different oils in a manual transmission?

Mix oils of different brands or viscosities in a manual transmission Almera Classic not recommended as it may cause foaming or loss of properties. If you had to add another oil (for example, on the road), perform a complete change as soon as possible.

What happens if you don’t change the oil in your manual transmission?

Over time, the oil loses its lubricating properties, which leads to accelerated wear of gears, bearings and synchronizers. Consequences: noise when driving, difficult gear shifting, and in severe cases - box jamming.

Is it necessary to change the oil in a manual transmission if the car doesn't drive much?

Yes, even with low mileage, oil ages due to oxidation and condensation. It is recommended to change it once every 4–5 years, regardless of mileage.

Is it possible to fill oil through the dipstick?

B Almera Classic There is no dipstick for checking the oil level in the manual transmission. Filling is carried out only through the top plug located on the box under the hood.

What kind of oil is poured into the Almera Classic manual transmission from the factory?

From factory to manual transmission Almera Classic original oil is added Nissan MT-XZ Fluid (75W-80, API GL-4). When replacing, it is recommended to use a similar product.