The 2008 Honda Odyssey uses SAE 5W-20 motor oil. This article explains the official specification, why it matters, and practical maintenance tips to keep the V6 engine running smoothly.
Oil Type and Grade
What to use
For the 3.5-liter V6 engine in the 2008 Odyssey, use SAE 5W-20 motor oil that is API-certified and energy-conserving. You can choose conventional, synthetic-blend, or full synthetic oil as long as it meets the viscosity and certification requirements.
Before selecting oil, keep in mind that using the correct viscosity and meeting the API energy-conserving standard helps with cold starts, fuel efficiency, and long-term engine protection.
- Viscosity: SAE 5W-20
- Certification: API-certified, energy-conserving
- Oil type: Conventional, synthetic blend, or full synthetic are acceptable if they meet the above specs
In practice, most drivers use a high-quality 5W-20 oil that meets the API specification and is suitable for normal driving in a wide range of climates. Always verify the exact specification in the owner's manual or with Honda if you drive in extreme conditions.
Maintenance and Capacity
Key numbers to know
Understanding the oil capacity and change interval helps you plan purchases and service visits. The Odyssey relies on regular maintenance to preserve performance and longevity.
- Oil capacity: about 4.5 quarts (4.3 liters) with the oil filter
- Oil change interval: follow the Honda Maintenance Minder system; with conventional oil, typical guidance is every 3,000–5,000 miles; with synthetic oil, 5,000–7,500 miles (or as indicated by the maintenance minder)
- Practical tips: always use a new oil filter, avoid overfilling, and ensure the engine is at its normal operating temperature when checking the level
Consult the owner's manual or your Honda dealer for climate-specific recommendations, especially if you regularly tow or drive in extreme heat or cold, as these conditions can influence the optimal change interval.
Summary
In short, a 2008 Honda Odyssey takes SAE 5W-20 motor oil that is API-certified and energy-conserving. Use the oil type that matches this viscosity, and follow the Maintenance Minder for intervals—roughly 3,000–5,000 miles with conventional oil or 5,000–7,500 miles with synthetic oil. The oil capacity is about 4.5 quarts with a new filter, and always verify exact specifications in the owner’s manual or with a Honda technician.


