The official engine oil capacity for the 2011 Acura MDX with the 3.5-liter V6 is 5.5 quarts when performing an oil change with a new filter.
The 2011 MDX uses a 3.5-liter V6 engine (the J35A family). This article explains the engine oil capacity and related maintenance considerations for that model year.
Official capacity and engine details
The 2011 MDX’s 3.5L V6 requires 5.5 quarts (5.2 liters) of engine oil when a new filter is installed during an oil change. This is the total oil capacity the system can hold from full drain to full, including the filter’s volume.
Why it matters for service
Knowing the exact capacity helps you plan how much oil to buy, ensures you reach the correct level on the dipstick, and avoids overfilling, which can cause engine damage.
Oil type and maintenance schedule
Honda/Acura generally recommends using 5W-20 viscosity for the 3.5L MDX engine in most climates, with an oil meeting ILSAC certification. Always consult the owner's manual or dealer for the exact specification applicable to your region. Follow the maintenance intervals stated in the manual, typically ranging from several thousand miles depending on driving conditions and oil type.
How to perform an oil change (brief guidance)
During an oil change with a new filter, drain the old oil completely, replace the filter, and add 5.5 quarts. Start the engine, let it reach operating temperature, turn off, and recheck the level with the dipstick. Add oil in small increments if needed to reach the proper mark.
Summary
The 2011 MDX engine oil capacity is 5.5 quarts with the filter replaced. Use the recommended viscosity (5W-20 in most cases) and follow the maintenance intervals in the owner's manual.