On most 2015 Highlanders with the 3.5-liter V6 (2GR-FE), the oil capacity for a standard oil change is 6.4 quarts with the filter installed (about 6.1 liters). If you don’t replace the filter, the engine holds about 5.7 quarts (5.4 liters).
These figures reflect the common maintenance practice of replacing the oil filter during an oil change. Oil type and climate can affect consumption and capacity, but these numbers are the standard reference for a full oil change on the 2015 Highlander with the 3.5 L V6.
Official oil capacity details
The following figures reflect the standard oil capacity for a typical oil change on the 2015 Highlander with the 3.5 L V6 when the filter is replaced. They distinguish between oil with and without the filter.
- With filter: 6.4 quarts (6.1 liters)
- Without filter: 5.7 quarts (5.4 liters)
Always verify with your owner's manual or a Toyota service bulletin for your exact vehicle, as regional variations or updated maintenance notes can occur.
Maintenance notes and recommendations
Oil type and viscosity: Toyota generally recommends 5W-30 engine oil, either synthetic or synthetic blend, depending on climate. Confirm with your owner's manual or dealership for your specific region and driving conditions.
Change interval: For synthetic oil, many Highlander owners follow a 5,000–7,500 mile interval, though Toyota's maintenance minder and driving conditions can adjust this. Replace the oil filter at every change to preserve capacity and filtration.
Summary
The 2015 Toyota Highlander 3.5 L V6 typically requires 6.4 quarts (6.1 liters) of oil when performing a standard oil change with a new filter, and about 5.7 quarts (5.4 liters) if the filter is not replaced. Use 5W-30 oil and follow the maintenance schedule in your manual.