2024 Nissan Altima Transmission Fluid & Service Guide

The 2024 Nissan Altima is a sleek, popular midsize sedan that relies on Nissan’s well-known Xtronic Continuously Variable Transmission (CVT) to deliver its smooth acceleration and impressive fuel economy. As an ASE-certified master technician, I cannot stress enough how critical proper transmission maintenance is for CVT longevity. Unlike traditional geared automatics, CVTs use a steel push-belt and pulley system that operates under extreme pressures and requires highly specialized, pristine fluid to prevent catastrophic wear.

Below is your comprehensive transmission reference guide for the 2024 Nissan Altima, covering fluid specifications, capacities, procedures, and service intervals.

Quick Answer

• Transmission Make/Model: Jatco Xtronic CVT8 (Jatco JF016E for the 2.5L engine; heavy-duty variant for 2.0L VC-Turbo)
• OEM Fluid Spec: Nissan Genuine CVT Fluid NS-3
• Drain & Fill Capacity: Approximately 4.0 – 5.0 quarts (varies slightly based on pan temperature and drainage time)
• Full Overhaul / Dry Capacity: Approximately 8.5 – 9.0 quarts
• Filter OEM Part Number: Internal strainer (Pickup tube filter) and external cartridge cooler filter. (e.g., 31728-series / 31726-series). Always verify exact part numbers with your dealer or service manual using your specific VIN, as CVT filter housing designs can vary slightly by engine option.
• Recommended Service Interval: Every 30,000 miles (severe duty) to 60,000 miles (normal duty), though aggressive 30k-mile intervals are highly recommended for optimal CVT lifespan.

Fluid Type Explained

When it comes to the 2024 Nissan Altima, the only fluid you should be putting in your transmission is Nissan Genuine CVT Fluid NS-3.

Why is this so important? CVTs operate entirely on friction between a specialized steel belt (or chain) and two variable-width pulleys. The fluid must perform a near-impossible balancing act: it has to lubricate the bearings and gears to prevent heat buildup, while simultaneously providing the exact coefficient of friction required for the steel belt to grip the smooth pulleys without slipping.

NS-3 is a low-viscosity synthetic fluid designed specifically to reduce friction in the gear-train while maximizing belt-to-pulley grip. Using an older fluid like Nissan NS-2, standard ATF (like Dexron or Mercon), or an aftermarket "universal CVT" fluid can alter this friction coefficient. The result is often belt slippage, aggressive juddering, excessive heat, and ultimately, a destroyed transmission. Always stick to the OEM NS-3 fluid.

Service Procedure

Servicing the Nissan Xtronic CVT requires attention to detail, particularly regarding fluid temperature.

Drain and Fill: A standard drain and fill is the safest and most common way to service this transmission. The technician removes the drain plug from the transmission pan, allowing roughly 4 to 5 quarts of fluid to drain. After reinstalling the plug and filling the transmission with fresh NS-3, the vehicle must be brought to a specific operating temperature (usually between 95°F and 113°F). The technician then checks the fluid level via the overflow plug. Because this only replaces about half of the fluid, doing it regularly is essential to keeping the overall additive package in the transmission healthy.

Full Exchange: A full fluid exchange replaces nearly all 8.5 to 9 quarts in the system. While beneficial for heavily degraded fluid, never use a pressurized flush machine on a Nissan CVT. Pressurized flushes can dislodge microscopic debris and push it into the delicate valve body solenoids. Instead, a full exchange should be done using a gentle cooler-line exchange method or by performing multiple drain-and-fill cycles (driving a few miles in between).

Note: Whenever the fluid is changed, the transmission control module’s (TCM) fluid degradation monitor should be reset using a professional bidirectional scan tool.

Service Interval

Nissan’s official maintenance schedule often lists the CVT fluid as "inspect every 10,000 miles and replace if deteriorating." However, waiting for the fluid to show visible signs of failure or waiting for a diagnostic code is a recipe for an expensive repair bill.

• Normal Duty: If you drive exclusively on flat highways in a temperate climate with little traffic, you can stretch your intervals to 60,000 miles.
• Severe Duty: If you drive in stop-and-go city traffic, live in a mountainous region, experience extreme summer heat, or have a lead foot, you fall under severe duty. For severe duty, change the CVT fluid every 30,000 miles.

As a master technician, I strongly advise adopting the 30,000-mile interval regardless of your driving habits. Fluid is cheap; Jatco CVTs are not.

Common Transmission Problems

While the newer generations of the Jatco CVT8 found in the 2024 Altima are significantly more robust than the notorious units from the early 2010s, they are still fundamentally CVTs and share similar vulnerabilities if neglected:

• CVT Judder / Shudder: A severe vibration or shaking feeling upon acceleration. This is often caused by degraded fluid allowing the push-belt to slip against the pulleys, scoring the metal surfaces.
• Overheating / Limp Mode: If the fluid loses its thermal breakdown properties, the transmission will overheat during long highway drives or hill climbs. The Altima will go into a "limp mode," heavily restricting engine RPM and speed to protect the transmission until it cools down.
• Valve Body Solenoid Failure: The solenoids that control pulley pressure are highly sensitive to contaminated fluid. Dirty fluid can cause the valves to stick, resulting in erratic RPM surging, delayed engagement when shifting from Park to Drive, or an illuminated Check Engine Light.

Protect your investment by prioritizing maintenance. If you aren't equipped to accurately measure fluid temperatures and reset CVT degradation parameters, leave this job to the pros.

Find a trusted shop on Repairius.