The 2018 Toyota 4Runner typically uses SAE 5W-30 full synthetic engine oil.
For the 4.0-liter V6 (1GR-FE) used in the 4Runner, the engine requires about 6.6 quarts of oil with a filter change. The oil should meet API SN or newer specifications and ILSAC GF-5 (or newer). Viscosity recommendations are aimed at broad climate compatibility, but always consult your owner’s manual or a Toyota dealer for climate-specific guidance and regional variations.
Recommended oil type and standards
Synthetic oil vs synthetic blend
Below are the core specifications most owners should follow when selecting oil for the 2018 4Runner. These criteria help ensure proper lubrication, performance, and warranty compliance.
- Viscosity: SAE 5W-30 for most driving conditions and climates.
- Oil type: Full synthetic is preferred; synthetic-blend is acceptable if full synthetic isn’t available.
- Standards: API SN (or newer) and ILSAC GF-5 (or GF-6 compatible oils).
- Quality: Choose oil labeled as meeting Toyota-approved specifications or listed as compatible with Toyota engines.
In practice, selecting a 5W-30 full synthetic oil that meets or exceeds API SN and ILSAC GF-5 will align with Toyota’s guidance for the 2018 4Runner.
Oil capacity and change interval
Practical notes
Understanding capacity and service timing helps with planning maintenance and purchases.
- Oil capacity (including filter): about 6.6 quarts (6.2 liters).
- Change interval: typically every 5,000–7,500 miles (8,000–12,000 km) under normal conditions when using synthetic oil; severe-service driving may require shorter intervals.
Always refer to the owner’s manual or a Toyota service advisor for the exact interval based on your climate, driving habits, and oil type used. After an oil change, reset the vehicle’s oil life monitor if equipped.
Region-specific notes
Oil recommendations can vary by market and climate. If you live outside the United States or in extreme temperatures, verify the specification with your local Toyota dealer or the vehicle’s manual to ensure you’re using the correct viscosity and oil standard for your region.
Summary
For a 2018 Toyota 4Runner, the standard recommendation is SAE 5W-30 full synthetic oil that meets API SN or newer and ILSAC GF-5 standards, with an approximate capacity of 6.6 quarts including the filter. Always confirm the exact specification and interval in your owner’s manual or with a Toyota service professional, especially if you operate the vehicle in extreme temperatures or unusual driving conditions.