Use 5W-30 engine oil, and you can choose conventional or synthetic as long as it meets the appropriate API/service specifications. The 2008 Altima comes with two possible engines, but both typically require 5W-30 with varying oil capacities.
The 2008 Altima offered two powertrains: a 2.5-liter four-cylinder (QR25DE) and a 3.5-liter V6. The exact amount of oil you’ll need depends on the engine; plan for roughly 4.5 quarts with a filter for the four-cylinder and about 5.5 quarts for the V6. Always verify with the owner’s manual and perform a dipstick check after pouring in oil.
Oil types to use
Here are common oil options that meet the Altima’s requirements. Choose based on budget, maintenance preferences, and climate.
- Conventional 5W-30
- Full-synthetic 5W-30
- Synthetic-blend 5W-30
Any of these options will work as long as the oil meets the necessary API service classification and the vehicle’s warranty conditions. For harsh climates or longer intervals between changes, synthetic or synthetic-blend options are often preferred.
Oil capacity and change intervals
Use these figures as a practical guide, but always confirm with the owner’s manual and your vehicle’s dipstick before an oil change.
- 2.5L inline-4 engine: approximately 4.5 quarts (4.3 liters) of oil with filter.
- 3.5L V6 engine: approximately 5.5 quarts (about 5.2 liters) of oil with filter.
- Oil-change intervals: conventional oil is commonly changed every 3,000–5,000 miles (4,800–8,000 km) depending on driving conditions; synthetic oil can often go 7,500–10,000 miles (12,000–16,000 km) or per the manual.
Always ensure you reset the maintenance light if applicable and dispose of used oil according to local regulations. For the exact interval, consult the owner’s manual or your Nissan dealer, as recommendations can vary by climate and driving habits.
Practical tips for selecting and changing oil
Follow these best practices to ensure you get the right oil and a proper change.
- Check the owner’s manual for the exact specification and capacity for your engine variant.
- Always replace the oil filter whenever you change the oil.
- Use the correct oil grade (5W-30) and ensure the oil meets API service standards for your model year.
- Torque the drain plug to the manufacturer’s specification and properly dispose of old oil.
If you’re unsure about which option to choose, a quick call to a Nissan service department or a trusted mechanic can confirm the right grade and interval for your climate and driving patterns.
Summary
The 2008 Nissan Altima generally requires 5W-30 oil, with the two engines using roughly 4.5 quarts (4.3 L) for the 2.5L and about 5.5 quarts (5.2 L) for the 3.5L. You can use conventional, synthetic, or a synthetic-blend oil that meets the appropriate API service standards. Always refer to the owner’s manual for exact specifications, and adjust change intervals based on driving conditions and oil type. For the best guidance, consult your manual or a Nissan service professional.