What kind of oil does a 4.0 Ford Explorer take?
The 4.0-liter Ford Explorer generally uses 5W-30 motor oil, but the exact grade can vary by model year and engine variant. Always verify the specification for your specific vehicle in the owner's manual or with a Ford dealer.
Oil specifications for the 4.0L Explorer: what to know by year and variant
Below is a general guide to the common oil viscosities you may encounter with the 4.0L Explorer, along with notes on when a different grade might apply. The safest approach is to follow the exact recommendation printed in your manual or on the under-hood label for your vehicle.
- 5W-30 is the default for most 4.0L engines. This viscosity works well across a wide temperature range and is compatible with both conventional and synthetic blends. Oil meeting API SN or newer, and ILSAC GF-5 or newer, is typically acceptable.
- 5W-20 may be specified for some late-model variants or specific climates. Certain engines or regional specifications permit 5W-20, particularly in colder climates or newer builds. Always confirm with the manual or dealer before using 5W-20 in a different year/model than recommended.
- 10W-30 or 10W-40 can be acceptable in certain hot climates or older engine configurations if specifically recommended. This grade is much less common for the 4.0L Explorer, and should only be used if your manual explicitly allows it.
In practice, most owners will find 5W-30 to be the reliable default for the 4.0L Explorer across a broad range of years, with 5W-20 appearing as an option in select models. Confirming the exact grade for your vehicle avoids misfueling or suboptimal protection.
Other oil considerations for the 4.0L Explorer
Beyond viscosity, there are other factors that affect which oil you should use. The following guidelines help ensure you choose the right type and meet Ford’s standards.
Oils that meet or exceed API SN/SM (or newer) and ILSAC GF-5 (or newer) are generally appropriate. Synthetic-blend or full synthetic oils offer improved protection and easier cold-start performance, especially in extreme conditions. Ford engines typically tolerate both conventional and synthetic blends as long as the oil meets the required specs. Synthetic blends often provide longer protection under demanding driving conditions. The 4.0L V6 typically holds about 5 quarts of oil with a filter, though exact capacity can vary by year and configuration. Standard drain intervals range from 5,000 to 7,500 miles for conventional oils and can extend with synthetic oils, depending on your driving and maintenance plan. Choose reputable brands that specify the correct viscosity and API/ILSAC ratings. Reading the label and cross-checking with your manual helps prevent misfueling.
While the exact oil grade can vary, following the manual and using a quality oil that meets or exceeds Ford’s specifications will keep the 4.0L Explorer protected across its service life.
How to confirm the exact oil specification for your vehicle
To ensure you’re using the correct oil for your exact Explorer, use this quick checklist. It helps you avoid mistakes when shopping for oil or discussing service with a mechanic.
- Identify your exact model year and engine variant (for example, 4.0L OHV vs. 4.0L SOHC). This information is on the vehicle’s title, registration, or the driver-side door sticker.
- Consult the owner's manual and the under-hood placard for the recommended viscosity and spec (Ford often lists both the grade and the required API/ILSAC rating).
- If in doubt, call a Ford dealership or a trusted mechanic with your VIN to confirm the precise specification for your vehicle.
- When purchasing oil, verify the bottle shows the correct viscosity and that it meets the required API/ILSAC ratings stated in your manual.
- Record the recommended change interval and stick to it, adjusting for extreme temperatures or demanding driving conditions.
Following these steps will help ensure you use the right oil for your specific 4.0L Explorer and maintain optimal engine performance.
Summary
For most 4.0L Ford Explorers, 5W-30 motor oil is the reliable default. Some years or climates may allow or require 5W-20, while a few special cases may call for other grades. Always verify the exact specification in your owner's manual or with a Ford dealer, and choose a quality oil that meets the appropriate API/ILSAC ratings. Regular, brand-name oil changes with the correct viscosity help protect the engine, extend its life, and maintain performance.
What kind of oil does a 2004 Ford Explorer 4.0 take?
The recommended oil for a 2004 Ford Explorer 4.0L is SAE 5W-30. A full synthetic or synthetic blend, especially a high-mileage formulation, is a good choice for a vehicle of this age. The engine requires approximately 5 quarts of oil when replacing the filter.
Key information
- Oil Type: SAE 5W-30
- Oil Quantity: 5 quarts (with filter)
- Oil Composition: Full synthetic or synthetic blend is recommended. High-mileage formulations are also a great option for vehicles over 75,000 miles.
- Specifications: Look for oils that meet or exceed Ford specifications like WSS-M2C946-B1, WSS-M2C961-A1, or are API SP/SN PLUS/SN/SM.
What oil does a 2003 Ford Explorer 4.0 take?
Notes: Conventional high mileage. 5W-30.
Can I use 5W-30 instead of 5W20 in my Ford Escape?
Oil viscosity is only really relevant when you're under manufacturer's warranty. After warranty you can use whatever you want. I have a 2017 which calls for 5W20, but I use 5W30.
What kind of oil does a Ford Explorer 4.0 take?
Recommended Ford Explorer Oil Type
Though model years can vary, the most recent Ford Explorer SUVs require either SAE 5W-30 or SAE 0W-30 full-synthetic oil for their engines.
