SAE 5W-20 engine oil. You can use conventional or synthetic, but it must meet API service SM or newer.
For the 2004 Pilot, the first-generation model, the recommended viscosity is 5W-20 across a broad temperature range. The engine capacity is about 5.5 quarts with filter. Always consult the owner's manual or the oil cap for confirmation, and consider your local climate when selecting synthetic vs conventional.
Oil specifications
Here are the key details you should follow when buying oil for your 2004 Pilot:
- Viscosity: SAE 5W-20
- Oil type: Conventional or synthetic 5W-20 is acceptable
- API service: SM or newer (SN, SL, etc.)
- Capacity: Approximately 5.5 quarts with filter
Using the recommended viscosity and meeting API service standards helps ensure proper lubrication, fuel economy, and engine longevity.
Other considerations
Climate and driving conditions
5W-20 covers typical climates in which the 2004 Pilot operates; in extremely hot or cold climates, verify with the manual whether there are any exceptions or recommended adjustments.
Oil change intervals
Oil-change intervals vary by oil type and driving. Conventional oil often requires changes around every 3,000-5,000 miles (4,800-8,000 km), while synthetic oil can extend to roughly 5,000-7,500 miles (8,000-12,000 km) under normal conditions. Always follow Honda's maintenance schedule and the oil brand's guidelines.
Oil capacity details
When topping up or changing oil, remember the capacity is about 5.5 quarts with filter; start with 5 quarts and add as needed after a short run to distribute oil, then recheck with the dipstick.
Summary
For a 2004 Honda Pilot, use SAE 5W-20 engine oil meeting API service SM or newer. You can choose conventional or synthetic oil. The typical oil capacity is about 5.5 quarts with a filter. Always confirm with the owner's manual and consider your climate and driving conditions when planning oil changes.