The 2021 Ford F-150 generally uses synthetic engine oil, with the viscosity depending on the engine. For most trims, 5W-30 synthetic is recommended, while the 5.0-liter V8 commonly calls for 5W-20. Always confirm the exact specification from your owner's manual or the oil filler cap on your engine.
In practice, the exact oil specification can vary by engine and climate. The most reliable source is the owner's manual for your specific F-150 configuration. If you’re unsure, use the manual’s recommended grade or consult a Ford dealer or a qualified mechanic.
Engine-specific oil guidelines
Before listing typical guidance, note that exact viscosity can vary by engine variant and environmental conditions. The following reflects common configurations for 2021 F-150 models.
- 2.7L EcoBoost V6 — 5W-30 synthetic oil
- 3.5L EcoBoost V6 — 5W-30 synthetic oil
- 3.5L PowerBoost full-hybrid — 5W-30 synthetic oil
- 5.0L V8 — 5W-20 synthetic oil
Always confirm the exact grade and capacity for your vehicle in the owner’s manual or on the oil filler cap, as incorrect viscosity can affect performance and warranty coverage.
Summary
For most 2021 F-150 engines, 5W-30 synthetic oil is the standard recommendation, with 5W-20 synthetic oil used by the 5.0L V8 in many configurations. Verify the precise specification for your engine and climate to ensure optimal lubrication and warranty compliance.