Nissan Coolant L248 Premix KE902-99935: complete guide to selection and replacement

Original antifreeze Nissan Coolant L248 Premix with article number KE902-99935 is a specialized coolant developed by engineers Nissan for the company's modern engines. Its unique formula is based on ethylene glycol and a package of organic additives (OAT technology) provides protection against corrosion, overheating and cavitation in cooling systems with aluminum and cast iron parts. But why is this antifreeze recommended for most models? Nissan, released after 2010? And how does it differ from universal analogues?

In this article we will look at technical specifications KE902-99935, compatibility with specific models (from Qashqai to Patrol), and we will also give step-by-step instructions for replacement, taking into account nuances that are not written about in official manuals. We will pay special attention to the issues of mixing with other antifreezes, service life and signs of counterfeit - this will help to avoid costly mistakes during maintenance.

Technical specifications Nissan Coolant L248 Premix KE902-99935

Antifreeze Nissan L248 Premix belongs to the class carboxylate coolants (OAT - Organic Acid Technology), which determines its key properties:

• 🔹 Color: bright green (in original packaging). Important: color is not an indicator of compatibility!
• 🔹 Temperature range: from -37°C to +135°C (freezing/boiling).
• 🔹 Service life: to 5 years or 100,000 km (depending on operating conditions).
• 🔹 pH level: 7.5–8.5 (alkaline environment for corrosion protection).
• 🔹 Standards: matches JIS K 2234 And Nissan MSE M3585-0010.

The critical difference between KE902-99935 and universal antifreeze is the absence of silicates and borateswhich can form deposits in radiators Nissan with thin channels (for example, in engines MR20DD or QR25DE). Instead, carboxylate compounds are used, which form a protective film only in areas with a risk of corrosion.

Parameter	Meaning	Note
Main component	Ethylene glycol (90–95%)	Diluted with deionized water until premix (ready to pour).
Density at 20°C	1.072–1.078 g/cm³	Measured with a hydrometer. Deviations indicate counterfeit or dilution.
Crystallization start temperature	-37°C	Guaranteed if the concentrate content is at least 50%.
Seal Compatibility	EPDM, silicone, fluorine rubber	Not aggressive to rubber pipes and gaskets Nissan.

Important: L248 Premix is not hybrid antifreeze (for example, as G12++), therefore it cannot be mixed with silicate or phosphate based fluids. This can lead to the formation of gel-like deposits in the cooling system.

Compatibility with Nissan models: official recommendations

The manufacturer clearly regulates the use KE902-99935 for the following car lines (year of manufacture - 2010 and newer):

• 🚗 Qashqai (J11, J11E) - all gasoline and diesel engines.
• 🚙 X-Trail (T32) - including hybrid versions with the system e-Power.
• 🚐 Navara (NP300, D23) - especially critical for turbodiesels YD25DDTi.
• 🚘 Juke (F15) - all modifications, including Nismo.
• ⚡ Ariya - for the cooling system of the battery and inverter (requires dilution to 30%).

For older models (eg Primera P12 or Almera N16) this antifreeze doesn't fit - used there Nissan L250 (blue) with a different additive package. Also KE902-99935 is prohibited for engines with cast iron cylinder blocks (e.g. TD27 in Patrol GR), since it does not provide sufficient protection against cavitation erosion.

⚠️ Attention: B Nissan Leaf (until 2018) L248 Premix Applies only to the engine cooling system, not to the battery! Battery modules require special fluid Nissan EV Coolant (article KE902-99936).

To confirm applicability for your model, please check the section "Coolant Specification" in the service book or use the online catalog Nissan Parts Europe (enter vehicle VIN).

How to distinguish the original KE902-99935 from a fake: 5 key signs

Fake antifreeze Nissan L248 may lead to engine overheating, corrosion of aluminum parts or even destruction of the pump. Here's how to recognize the original:

1. Packaging: The original canister is made from high density polyethylene (HDPE) with a matte finish. At the bottom there is embossed "Nissan" markings and production date (format YYMMDD). Counterfeits often have a glossy surface and adhesive labels.
2. Label: Hologram with logo Nissan changes color when tilted. The barcode must be readable (check via the app Barcode Scanner). On the reverse side it is indicated composition in 3 languages (Japanese, English, French).
3. Color and consistency: The original has rich green tint (closer to emerald) without turbidity. When shaken, the foam settles behind 2–3 seconds. Counterfeits are often yellowish or have sediment.
4. Smell: The original has a weak specific aroma (similar to cloves), while the counterfeit smells sharp alcohol or has no odor at all.
5. Checking with a hydrometer: Density at 20°C should be 1.072–1.078 g/cm³. Deviations by more than 0.005 g/cm³ They talk about diluting with water.

Additional test: drop antifreeze on white sheet of paper. The original does not leave colored streaks after drying, while a fake may turn the paper yellow or brown (a sign of low-quality dyes).

What happens if you use fake antifreeze?

Fake KE902-99935 often contains cheap ethylene glycol without additives or with the addition of methanol, which evaporates when heated. This leads to:

1) Engine overheating due to a decrease in the heat capacity of the liquid.

2) Corrosion of aluminum parts (block head, radiator) - counterfeits do not contain inhibitors.

3) Pump destruction due to cavitation (the original has special additives against this).

4) Radiator blockage deposits (silicates in fakes form a gel).

In critical cases this leads to cracks in the cylinder block or breakdown of the cylinder head gasket.

Step-by-step instructions for replacing antifreeze in Nissan

Replacement Nissan Coolant L248 Premix requires caution - errors when washing or filling can lead to air jams or damage to the thermostat. Below are universal instructions for most models (using the example Qashqai J11):

Drain the old fluid (open the valve on the radiator and the plug on the engine block)|Rinse the system with distilled water (at least 2 cycles)|Check the integrity of the pipes and clamps|Prepare new fluid (7–8 liters for a complete replacement)|Place the car on a flat surface (slope no more than 5°)-->

Step 1. Drain the old antifreeze

1. Start the engine and let it run 2–3 minutes (the thermostat will open).

2. Place a container with a volume of at least 10 liters under the radiator drain valve (usually located in the lower right corner).

3. Unscrew the tap and plug on the engine block (accessible from the gearbox side). On X-Trail T32 The plug is located under the intake manifold - it may be necessary to remove the protection.

⚠️ Attention: On Navara NP300 with diesel YD25DDTi Additionally, you need to drain the antifreeze from heater (disconnect the lower pipe of the heater in the cabin).

Step 2: Flush the system

1. Close the drain holes and fill distilled water (5–6 liters) through the expansion tank.

2. Start the engine, turn the heater to maximum and let it run 10 minutes.

3. Drain the water and repeat the procedure until the liquid becomes clear.

4. To remove any remaining antifreeze or scale, use special washes (For example, Liqui Moly Kuhler-Reiniger), but only if the system is very dirty!

Step 3. Filling with new antifreeze

1. Make sure all plugs are closed. On Juke F15 Check the tightness of the connection of the thermostat pipe - it often leaks.

2. Pour slowly Nissan L248 Premix through the radiator neck to the mark MAX on the expansion tank.

3. Start the engine, turn on the heater maximum heating and add antifreeze to the level (the system will “bleed” itself).

4. Check for absence of air: when warmed up to 90°C The upper radiator hose should be hot and the lower hose should be warm.

Antifreeze volume for popular models:

• 🚗 Qashqai J11 (MR20DD): 7.2 l.
• 🚙 X-Trail T32 (QR25DE): 8.0 l.
• 🚐 Navara NP300 (YD25DDTi): 9.5 l (including heating system).

Can KE902-99935 be mixed with other antifreezes?

Mixing Nissan L248 Premix with other coolants - risky procedure, but sometimes necessary (for example, on the road). Here are the compatibility rules:

Antifreeze type	Compatibility	Consequences
Nissan L250 (blue)	❌ No	The reaction of the additives will lead to the formation of a precipitate.
G12++ (red, hybrid)	⚠️ Partially	Cloudiness is possible, but without critical consequences.
G13 (violet, lobrid)	✅ Yes	Safe, but reduces service life by up to 3 years.
Toyota LLC (pink)	✅ Yes	Similar to OAT technology, but requires flushing at the next replacement.

If you had to add another antifreeze, be sure to flush the system at the first opportunity. For example, a mixture L248 with G11 (silicate) forms gel-like clots that clog heater radiator - this is a common cause of poor interior heating in Nissan Teana L33.

Exception: in emergency situations topping up is allowed distilled water (no more 500 ml), but then you need to restore the antifreeze concentration to 50% (checked with a hydrometer).

Analogues of Nissan Coolant L248 Premix: what can be used instead of KE902-99935

Original KE902-99935 is expensive (from 1,500 rub/liter), so many are looking for alternatives. The main rule: there must be an analogue carboxylate (OAT) and meet the standard JIS K 2234. Here are the tested options:

• 🔧 Ravenol HJC Hybrid Japanese Coolant (article 4014835755806) - a complete analogue in composition, but with an increased service life (up to 250,000 km).
• 🔧 Coolstream A-110 — Russian antifreeze, certified for Nissan. The price is lower by 30–40%.
• 🔧 Motul Inugel Optimal - universal OAT antifreeze, compatible with L248, but requires dilution (1:1).
• 🔧 Total Glacelf Auto Supra - used on conveyors Renault-Nissan in Europe.

⚠️ Attention: Avoid analogues with the inscription "Universal" or "For all cars". For example, Felix Carbox or Sintec Unlimited not suitable for Nissan, as they contain phosphates that are aggressive to aluminum alloys MR-series.

Before purchasing an analogue, check it on the manufacturer’s website - the standard should be indicated there Nissan MSE M3585-0010 or JIS K 2234. For example, Ravenol publishes compatibility certificates for each model Nissan.

Common mistakes when replacing antifreeze and how to avoid them

Even experienced car owners make mistakes that reduce the life of the cooling system. Here are the top 5 mistakes and their consequences:

1. Ignoring flushing: If you do not flush the system after draining the old antifreeze, silicate residues (from G11) will react with carboxylates L248, forming abrasive particleswhich destroy the pump.
2. Overfilling or underfilling: Excess antifreeze will lead to its release through the valve of the expansion tank (especially true for Nissan Juke with a small tank). Underfilling is fraught air jams and overheating.
3. Using tap water: Chlorine and salts in water accelerate the corrosion of aluminum. For example, in Nissan Almera N18 this leads to radiator leakage within 20,000 km.
4. Replacement without leak testing: On Nissan X-Trail T32 Heater pipes often crack - if you don’t notice this when replacing, antifreeze will get into the cabin.
5. Mixing with antifreeze: Antifreeze (for example, A-40M) contains nitrites, which react with additives L248, forming foam and reducing heat transfer.

To avoid these mistakes, follow the checklist:

Check the tightness of the system (there are no leaks on the pipes)|Use only distilled water for flushing|Do not exceed the MAX level in the expansion tank|After replacement, warm up the engine until the fan operates|Check the operation of the heater (hot air should blow)-->

If after replacement the antifreeze quickly darkens (within 1,000 km), this is a sign:

• 🔸 Remains of old fluid in the system (poor flushing).
• 🔸 Corrosion in the radiator or engine block.
• 🔸 Counterfeit antifreeze (no inhibitors).

FAQ: Answers to frequently asked questions about Nissan L248 Premix antifreeze

Can KE902-99935 be used in a Nissan with over 200,000 km?

Yes, but with reservations. In older engines (eg. QR20DE in Nissan Primera P12) may be scale deposits, which L248 will not dissolve (unlike silicate antifreeze). It is recommended to flush the system before replacing special cleaner (For example, Wynns Cooling System Flush) and check the condition of the pipes - they can become fragile from old age.

What is the difference between KE902-99935 and KE902-99931?

KE902-99931 - this is the previous version L248 for models before 2010 (for example, Nissan Note E11). Main differences:

• Service life: 3 years against 5 years at KE902-99935.
• Color: duller green (closer to light green).
• Ingredients: contains less carboxylate additives, therefore it provides worse protection against cavitation.

mix them up it's impossible - this will lead to a decrease in protective properties.

How often should you check the antifreeze level in your Nissan?

Check the level in the expansion tank every 10,000 km or before a long trip. This is especially true for:

• 🚗 Nissan Qashqai with engine HR16DE — the tank is located inconveniently there, and leaks are difficult to notice.
• 🚙 Nissan X-Trail with VR30DDTT — high temperatures in a turbocharged engine accelerate evaporation.

Normal level is between the marks MIN And MAX on cold engine If the antifreeze goes away faster 200 ml/10,000 km, look for a leak (most often the pump or heater radiator is leaking).

Is it possible to fill KE902-99935 into other brands of cars?

Theoretically, yes, but with an eye to the manufacturer's standards. Nissan L248 Premix suitable for:

• 🔹 Renault (For example, Duster with engine H4M - this is the same MR20DE from Nissan).
• 🔹 Infiniti (all models from 2010, e.g. QX50 with VR30DDTT).
• 🔹 Mitsubishi (only if the manual specifies the standard JIS K 2234).

But for Toyota, Honda or Korean brands, it is better to use original antifreeze - there are different requirements for additives (for example, Toyota LLC contains glycerin, which is not in L248).

What to do if antifreeze turns brown?

Darkening of antifreeze is a sign corrosion or additive decomposition. Follow the algorithm:

1. Drain and flush the system immediately distilled water (3–4 cycles).
2. Check status radiator And pumps - brown color often indicates destruction of aluminum parts.
3. If the drained liquid contains cereal or oily stains, this is a sign of a breakdown of the cylinder head gasket (especially important for Nissan Pathfinder R52 with engine VQ40DE).
4. Fill in new antifreeze and 1,000 km check its color. If it darkens again, it is required engine diagnostics.