The 2018 Toyota 4Runner with the 4.0 L V6 (1GR-FE) takes about 6.6 quarts of engine oil when you replace the filter.
Official capacity and what it means
The capacity cited for the 1GR-FE engine reflects a full oil change that includes a new filter. The exact amount you need can vary slightly depending on the filter and how you drain the oil, so use the dipstick to confirm after filling.
- 6.6 quarts (6.3 liters) of engine oil with a new filter installed
- About 6.0 quarts (5.7 liters) if the filter is not replaced
In practical terms, many owners fill with the full 6.6 quarts and then verify the level with the dipstick to reach the correct full mark.
How to fill and verify the oil level
To ensure a proper fill and accurate level, follow these steps:
- Park on level ground and engage the parking brake. Turn off the engine and wait a few minutes for oil to settle.
- Open the hood and locate the oil fill cap on top of the engine, then remove the cap to vent.
- Install the new oil filter, lubricate the gasket with a bit of oil, and thread on until snug. Do not over-tighten.
- Pour oil gradually in small increments, checking the level with the dipstick after each addition.
- When the dipstick shows near the full line, stop adding oil and recheck after a few minutes of settling.
Always ensure the engine is at normal operating temperature and the dipstick reading is clean for an accurate measurement.
Recommended oil and maintenance
Guidelines for the 4.0 L V6 advise choosing a standard to full-synthetic 5W-30 oil that meets or exceeds API SN or ILSAC GF-5 specifications. The owner's manual specifies service intervals based on driving conditions, but common practice is:
- Viscosity: SAE 5W-30 (synthetic or synthetic blend)
- Specifications: API SN or higher; ILSAC GF-5 or higher
- Change interval: about every 5,000 miles under normal driving; more frequent in severe conditions
Always confirm with the owner's manual or dealership service advisor for your climate and driving style.
Summary
The 2018 4Runner’s 4.0 L V6 requires roughly 6.6 quarts of engine oil when performing a full oil change with a new filter. The exact amount can vary slightly depending on whether you change the filter and your draining technique. Use the recommended viscosity and follow the dipstick to ensure you reach the correct level. Refer to the owner's manual for the official specification and service intervals.