Check your owner's manual: The most accurate and reliable information will be found in your owner's manual. It will specify the exact type and viscosity of oil recommended by Ford for your specific truck.
Important Considerations:
* 5W-20 vs. Other Viscosities: While 5W-20 is common, older manuals might recommend a slightly different viscosity (like 5W-30). Again, your manual is the authority. Using the wrong viscosity can impact engine performance and longevity.
* Synthetic vs. Conventional: You can use either synthetic or conventional oil meeting the 5W-20 specification. Synthetic oil generally lasts longer and offers better performance in extreme temperatures, but it's also more expensive.
* Oil Certification: Ensure the oil you choose meets the API (American Petroleum Institute) certification. Look for the "SN" or "SN PLUS" designation on the oil bottle.
In short: Consult your owner's manual. It's the best source of information for your specific vehicle. Failing that, a 5W-20 oil that meets API SN or SN PLUS is a safe bet, but always prioritize what your manual states.
