The 2018 Altima 2.5 L requires 0W-20 full-synthetic engine oil, meeting ILSAC GF-5 and API SN+ specifications.
This article explains the official specification, why that viscosity matters for performance and efficiency, and how to apply it when servicing a 2018 Altima with the 2.5 L engine.
Official oil specification for the 2.5 L engine
According to Nissan’s guidelines and the owner’s manual, the recommended oil for the 2.5 L four-cylinder engine is a 0W-20 synthetic that satisfies ILSAC GF-5 (or API SN+ and newer) standards. This ensures proper lubrication, emissions performance, and fuel economy.
- 0W-20 full-synthetic engine oil meeting ILSAC GF-5 (or API SN+ and newer) specifications; this is the recommended oil for the 2018 Altima 2.5 L.
Conclusion: Use 0W-20 synthetic oil that complies with ILSAC GF-5/API SN+ to maintain optimal performance and warranty compliance.
Practical considerations for oil shopping and maintenance
Before shopping for oil, keep these guidelines in mind to ensure compatibility with the Altima’s engine and long-term performance.
- Viscosity: 0W-20
- Type: full synthetic
- Specifications: meets ILSAC GF-5 or API SN+ (or newer) and is suitable for Nissan engines
Conclusion: Verify that your oil specifically lists 0W-20, is synthetic, and carries GF-5/SN+ compliance; avoid oils that do not meet these standards.
Oil change intervals and climate considerations
Oil-change intervals depend on driving conditions, climate, and the type of oil used. With 0W-20 synthetic, many drivers extend intervals beyond conventional oil routines while still following Nissan’s maintenance minder system or the owner’s manual guidance. In severe conditions (extremely hot or cold climates, frequent short trips, or heavy load), shorter intervals may be advisable.
Summary
For the 2018 Nissan Altima 2.5 L, the correct oil is 0W-20 full-synthetic engine oil that meets ILSAC GF-5/API SN+ specifications. Always verify the exact spec on the oil container and in the owner's manual, and follow the recommended service intervals to protect engine performance and warranty coverage. Using the proper oil supports fuel economy, emissions controls, and long-term engine health.
What's the fastest Altima?
2021 Altima Engine Performance
| 2021 Nissan Altima Engine Specs | ||
|---|---|---|
| Trim Levels | Engine Size | Top Speed |
| Platinum | 2.5L 4-cylinder | 119mph (Estimated) |
| SL | 2.5L 4-cylinder | 119mph (Estimated) |
| SR VC-TURBO™ | 2.0-L VC-Turbo™ 4-cylinder | 130mph (Estimated) |
How much does it cost to replace a timing chain on a Nissan Altima?
The average cost for a Nissan Altima Timing Chain Tensioner Replacement is between $1,717 and $2,361. Labor costs are estimated between $1,376 and $2,018 while parts are priced between $341 and $343. This range does not include taxes and fees, and does not factor in your unique location.
Does the Nissan Altima take 0W-20?
In general, we recommend full-synthetic 0W-20 oil as the ideal Nissan Altima oil type.
What is the best oil for Nissan Altima 2.5 L?
Picking the right oil for your Nissan Altima is vital. 5W30 synthetic oil stands out as the top pick among the many choices. When planning your next Nissan Altima oil change near Bellevue, keep these reputable brands in mind: Castrol Edge High Mileage Full Synthetic Motor Oil 5W-30.