The 2008 Honda Odyssey with the 3.5-liter V6 engine uses about 4.5 quarts of engine oil when you replace the filter; roughly 4.3 quarts if you don’t change the filter. The typical oil recommendation is 5W-20, and you should fill to the full mark on the dipstick after an oil change. Always check your owner's manual for your exact configuration and local climate considerations.
Understanding the capacity numbers
When planning an oil change, it helps to know the standard capacity figures for the 2008 Odyssey's engine. The numbers below reflect the common factory specification for this model year:
- With a new oil filter: 4.5 quarts (about 4.3 liters)
- Without replacing the filter: about 4.3 quarts (roughly 4.1 liters)
These figures cover the typical V6 engine setup in the 2008 Odyssey. If your vehicle has a different engine variant or unique maintenance history, always confirm with the manual or a dealer.
Oil type and how to fill correctly
Using the right oil and filling to the correct level helps protect the engine. For most 2008 Odysseys, the recommended viscosity is 5W-20. If you live in extremely hot climates or have a specific manufacturing update, your manual may allow 5W-30, but 5W-20 is the standard choice for this model year.
Recommended viscosity and brands
Use 5W-20 motor oil that meets or exceeds API SN/SN-RC (or newer) standards. Genuine Honda Motor Oil or an equivalent high-quality brand is acceptable as long as it meets the specification.
How to check and top up the oil level
After an oil change, and with the engine warm, park on level ground and check the dipstick. If the oil level is below the full mark, add small amounts at a time until it reaches the full line. Do not overfill, as that can cause engine issues.
Practical steps for a standard oil change
Before performing an oil change yourself or briefing a technician, keep these general steps in mind to ensure you’re working with the correct quantities:
- Warm the engine briefly, then park on level ground and turn off.
- Drain the old oil and replace the oil filter.
- Install the drain plug and pour in the recommended oil capacity (4.5 quarts with filter).
- Check the level on a warm engine and top up to the full mark as needed.
Following these steps helps ensure you achieve the correct fill level and avoid under- or overfilling the engine.
Summary
For the 2008 Honda Odyssey’s 3.5-liter V6, the standard oil capacity is 4.5 quarts with a new filter and about 4.3 quarts without a filter. Use 5W-20 oil and fill to the full mark on the dipstick after an oil change. Always consult the owner’s manual for your exact vehicle configuration and local driving conditions, and consider dealer guidance if you’re unsure.


