2018 Ford Flex Oil type
Depends on your engine. Choose yours, or compare them here.
- 3.5L Duratec 5W-20
- 3.5L Ecoboost 5W-30
5W-20
3.5L Duratec
5W-30
3.5L Ecoboost
2018 Ford Flex Owner's Manual, PDF pages 312 and 316
Motorcraft® SAE 5W-20 Premium Synthetic Blend MotorOpen the manual at this page ↗Added Oct 16, 2026
See where it's printed
Oil type · 3.5L Duratec · PDF page 312
Motorcraft® SAE 5W-20 Premium Synthetic Blend Motor
Oil type · 3.5L Ecoboost · PDF page 316
Motorcraft® SAE 5W-30 Premium Synthetic Blend Motor
2018 Ford Flex Owner's Manual, PDF page 312
Motorcraft® SAE 5W-20 Premium Synthetic Blend MotorOpen the manual at this page ↗Added Oct 16, 2026
See where it's printed
Oil type · 3.5L Duratec · PDF page 312
Motorcraft® SAE 5W-20 Premium Synthetic Blend Motor
2018 Ford Flex Owner's Manual, PDF page 316
Motorcraft® SAE 5W-30 Premium Synthetic Blend MotorOpen the manual at this page ↗Added Oct 16, 2026
See where it's printed
Oil type · 3.5L Ecoboost · PDF page 316
Motorcraft® SAE 5W-30 Premium Synthetic Blend Motor
See every quote (2 values)
All versions
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| 3.5L Duratec | 5W-20 | “Motorcraft® SAE 5W-20 Premium Synthetic Blend Motor” | PDF page 312 ↗ |
| 3.5L Ecoboost | 5W-30 | “Motorcraft® SAE 5W-30 Premium Synthetic Blend Motor” | PDF page 316 ↗ |
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For 3.5L Duratec
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