The recommended motor oil for a 2015 Nissan Altima depends on the engine. The 2.5-liter four-cylinder uses 0W-20 full-synthetic oil, while the 3.5-liter V6 uses 5W-30 full-synthetic oil. Always check the owner’s manual for your exact engine code and regional guidance.
Oil requirements by engine
The following overview reflects the oil types specified by Nissan for common 2015 Altima installations in North America. Use the engine code listed on your vehicle to confirm which spec applies.
2.5L four-cylinder (QR25DE)
Use SAE 0W-20 full-synthetic motor oil. Choose an oil that meets API SN or newer and ILSAC GF-5 specifications. This viscosity is recommended to help with fuel efficiency and cold-start performance across a wide range of climates.
3.5L V6 (VQ35DE)
Use SAE 5W-30 full-synthetic motor oil. Also ensure the oil meets API SN or newer and ILSAC GF-5 specifications. This engine typically benefits from a slightly heavier viscosity in warmer environments while maintaining protection and performance.
Quick reference by engine
- 2.5L four-cylinder (QR25DE): 0W-20 full synthetic oil (API SN or newer, ILSAC GF-5).
- 3.5L V6 (VQ35DE): 5W-30 full synthetic oil (API SN or newer, ILSAC GF-5).
Concluding note: Always follow the exact specification in your owner’s manual for your VIN and regional climate. Use a high-quality, full-synthetic oil and a compatible filter, and adhere to Nissan’s recommended maintenance intervals for oil changes.
Summary
For the 2015 Nissan Altima, oil choice depends on the engine: 0W-20 full synthetic for the 2.5L four-cylinder and 5W-30 full synthetic for the 3.5L V6. Verify your engine code in the owner’s manual and use oils that meet API SN and ILSAC GF-5 standards to ensure proper protection and performance.