2023 Nissan Altima Complete Fluid Specifications

As an ASE-certified master technician, I’ve seen my fair share of Nissan Altimas roll into the service bay. The 2023 Nissan Altima is a fantastic, reliable sedan, whether you’re driving the standard 2.5-liter naturally aspirated model (available in FWD or Intelligent AWD) or the high-tech 2.0-liter VC-Turbo. However, keeping this modern drivetrain running smoothly requires strict adherence to factory fluid specifications.

Nissan has highly specific requirements for their continuously variable transmissions (CVTs) and cooling systems. Using a "universal" fluid to save a few bucks is the fastest way to end up with a blown transmission or a compromised water pump. Below is your complete, authoritative guide to the fluid specifications, capacities, and maintenance pitfalls for the 2023 Nissan Altima.

Quick reference

Fluid	Type/Spec	Capacity
Engine Oil (2.5L)	Genuine Nissan 0W-20 (API SP / ILSAC GF-6A)	5.3 qts (5.0 L) with filter
Engine Oil (2.0L VC-Turbo)	Genuine Nissan 0W-20 (API SP / ILSAC GF-6A)	5.0 qts (4.7 L) with filter
Engine Coolant	Nissan Genuine L255N Blue Long Life (OAT)	7.3 qts (2.5L) / 8.0 qts (2.0L)
Transmission Fluid (CVT)	Nissan Genuine CVT Fluid NS-3	8.6 qts (Total), ~4-5 qts (Drain/Fill)
Transfer Case (AWD only)	Nissan Hypoid Super GL-5 80W-90	0.33 qts (0.31 L)
Rear Differential (AWD)	Nissan Hypoid Super GL-5 80W-90	0.58 qts (0.55 L)
Brake Fluid	Nissan Super Heavy Duty DOT 3	Fill to MAX line
Power Steering	Electric Power Steering (EPS)	N/A (No fluid)
Windshield Washer Fluid	Standard Washer Fluid	4.7 qts (4.5 L)

Note: Always verify exact capacities in your owner’s manual or OEM service info, as levels can vary slightly based on production date and specific trim packages.

Engine Oil

Modern Nissan engines demand high-quality, low-viscosity synthetic oils to maintain tight tolerances and maximize fuel economy. Both the 2.5L PR25DD and the advanced 2.0L KR20DDET Variable Compression Turbo (VC-Turbo) require 0W-20 full synthetic oil meeting the API SP and ILSAC GF-6A specifications.

Maintenance Intervals & Pitfalls: Nissan generally recommends oil changes every 5,000 to 7,500 miles, depending on your driving conditions. However, if you are driving the VC-Turbo model, I strongly advise sticking strictly to the 5,000-mile interval. The variable compression linkage and the turbocharger are highly sensitive to oil degradation and sludge buildup. Never substitute heavier weights like 5W-30 or 10W-30, as this can severely disrupt the hydraulic actuators in the VC-Turbo engine and trigger timing issues in both engines.

Engine Coolant

Nissan uses Genuine Nissan L255N Blue Long Life Antifreeze/Coolant. This is a Phosphated Organic Acid Technology (P-OAT) coolant. It is pre-mixed 50/50 with demineralized water right out of the bottle.

Maintenance Intervals & Pitfalls: The factory blue coolant is rated for an impressive 10 years or 105,000 miles. After the initial replacement, you should change it every 5 years or 75,000 miles. The biggest pitfall: Never mix this blue P-OAT coolant with traditional green inorganic acid technology (IAT) coolants or universal "all-makes, all-models" yellow/green fluids. Mixing incompatible coolants can cause silicates to drop out of suspension, turning the coolant into a highly abrasive gel that will destroy your heater core and water pump. If you cannot find Nissan Blue, a high-quality aftermarket Asian Blue P-OAT equivalent is acceptable, but OEM is always best.

Transmission Fluid

The 2023 Altima uses Nissan's Xtronic CVT. The only fluid you should ever put in this transmission is Genuine Nissan CVT Fluid NS-3.

Maintenance Intervals & Pitfalls: As a master technician, I cannot stress this enough: Never use universal ATF, Dexron, Mercon, or even older Nissan NS-2 fluid in this transmission. The NS-3 fluid is formulated with a very specific friction modifier package designed for the belt-and-pulley system of the modern Xtronic CVT. Using the wrong fluid will cause the steel belt to slip against the pulleys, generating immense heat and leading to catastrophic transmission failure within miles. While Nissan claims the fluid is "lifetime" under normal conditions, severe duty (city driving, short trips, hot climates) dictates a drain-and-fill every 30,000 to 60,000 miles. Preventative maintenance is much cheaper than a $4,000 transmission replacement.

Transfer Case and Rear Differential (AWD Models)

If your 2.5L Altima is equipped with Intelligent All-Wheel Drive, you have a transfer assembly (power transfer unit) mounted to the transaxle and a rear differential. Both units require a high-quality API GL-5 80W-90 gear oil. Nissan specifies their Genuine Differential Oil Hypoid Super GL-5 80W-90.

Maintenance Intervals & Pitfalls: Inspect the fluid level every 10,000 miles. For longevity, I recommend draining and filling both the transfer case and the rear differential every 30,000 to 60,000 miles. Because these hold very small amounts of fluid (less than a quart each), thermal breakdown happens quickly. Ensure you break the fill plug loose before removing the drain plug—you don't want to drain the fluid only to find out you can't refill it because the top plug is seized.

Brake Fluid

The 2023 Altima requires DOT 3 brake fluid. Nissan recommends their Genuine Super Heavy Duty Brake Fluid, but any high-quality aftermarket DOT 3 fluid from a sealed bottle is perfectly fine.

Maintenance Intervals & Pitfalls: Brake fluid is hygroscopic, meaning it absorbs moisture from the atmosphere over time. This moisture lowers the boiling point of the fluid, leading to a spongy pedal during hard braking, and causes internal corrosion of the ABS module and calipers. Flush the brake system every 2 to 3 years, regardless of mileage. Never use DOT 5 (silicone-based) fluid, as it is strictly incompatible with ABS systems and will destroy the rubber seals. DOT 4 can be used in a pinch as it is glycol-based like DOT 3, but it absorbs moisture faster and requires more frequent changes. Stick to DOT 3.

Power Steering Fluid

The 2023 Altima utilizes an Electric Power Steering (EPS) rack. There is no power steering fluid to check, top off, or leak. The system is driven entirely by an electric motor, making it maintenance-free from a fluid perspective.

Windshield Washer Fluid

You can use any standard off-the-shelf windshield washer fluid. The reservoir holds about 4.7 quarts. In northern climates, ensure you are using a winter-grade fluid rated for below-freezing temperatures (often -20°F or lower) to prevent the reservoir and lines from cracking during a deep freeze.

Keeping up with these factory specifications is the secret to getting 200,000+ trouble-free miles out of your Altima. If you don't have the tools or the time to handle these fluid services yourself, don't leave your car's health to chance. Find a trusted shop on Repairius.