The 2021 Nissan Altima requires full-synthetic motor oil. For the 2.5-liter engine, use 0W-20; for the 2.0-liter VC-Turbo engine, the typical guidance is 0W-30 or 5W-30 depending on climate. Always verify the exact specification on your vehicle’s oil cap and in the owner’s manual.
Below we outline the oil requirements by engine option, plus practical tips for maintenance and compliance with Nissan’s recommendations.
Engine options and oil requirements
Two four-cylinder engines were available in the 2021 Altima. Each has its own oil viscosity recommendation, so owners should consult the manual or under-hood label for the precise grade.
2.5L 4-Cylinder engine
For the 2.5-liter engine, the standard oil specification is provided here to guide your choice.
- Oil type: Full synthetic motor oil
- Viscosity: SAE 0W-20
- Performance standard: API SP (or SN) and ILSAC GF-6/GF-5 compatible
- Capacity: Approximately 4.7–4.8 quarts with filter
Concluding: Use 0W-20 full synthetic oil to meet Nissan’s spec for the 2.5L Altima engine. Always verify the exact requirement on the oil fill cap and in the owner’s manual.
2.0L VC-Turbo engine
The VC-Turbo engine has a different viscosity recommendation due to higher performance and operating temperatures. The typical guidance is as follows.
- Oil type: Full synthetic motor oil
- Viscosity: SAE 0W-30 or 5W-30 (depending on climate and driving conditions)
- Performance standard: API SP (or SN) and ILSAC GF-6/GF-5 compatible
- Capacity: Approximately 4.4–4.6 quarts with filter
Concluding: For the 2.0L VC-Turbo, check the owner’s manual and the under-hood oil cap for the exact grade, but 0W-30 or 5W-30 is commonly acceptable for most climates.
Operational tips and maintenance
In addition to selecting the correct oil, adhering to Nissan’s recommended maintenance schedule is important. Oil change intervals vary by engine, driving conditions, and climate. Synthetic oil often allows longer intervals, but harsh conditions (extreme temperatures, heavy towing, or frequent short trips) may require more frequent changes. Always follow the interval outlined in the owner’s manual and use oil that meets API SP and ILSAC GF-6 (or GF-5) specifications.
Practical steps: label your calendar with the maintenance intervals, keep receipts for oil changes, and confirm the grade on the oil cap if you’re unsure. When in doubt, consult a Nissan service professional for a quick confirmation specific to your vehicle’s VIN.
Summary
The 2021 Nissan Altima uses full-synthetic motor oil. The 2.5L engine requires 0W-20, while the 2.0L VC-Turbo typically uses 0W-30 or 5W-30, depending on climate and driving conditions. Always verify the exact specification on the oil fill cap and in the owner’s manual, and choose oil that meets API SP and ILSAC GF-6 (or GF-5) standards. Adhere to the maintenance schedule to keep the engine running smoothly.