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The Ford Flex is a full-size crossover SUV manufactured from 2009 to 2019 with two primary engine options: a 3.5L V6 naturally aspirated engine and a 3.5L V6 EcoBoost turbocharged engine. Using the correct oil capacity, viscosity, and type is essential for maintaining performance and longevity. This guide lists all model years with full oil specifications and maintenance recommendations.
Proper engine oil serves as the primary lubricant for moving engine components, reducing friction and wear while helping to regulate engine temperature. Following manufacturer specifications for oil capacity, type, and change intervals ensures optimal engine protection and fuel efficiency across all operating conditions.
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2019 Ford Flex Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 3.5L V6 (262 hp) / 3.5L V6 EcoBoost (355 hp) |
| Oil Capacity (with Filter) | 5.5 qt (5.2 L) – Standard V6 / 6.0 qt (5.7 L) – EcoBoost |
| Oil Capacity (without Filter) | 5.0 qt (4.7 L) – Standard V6 / 5.5 qt (5.2 L) – EcoBoost |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 5W-20 |
| Oil Change Interval | Every 7,500 miles or 12 months |
| Oil Drain Plug Torque | 20 lb-ft (27 N·m) |
| Recommended Filters | Motorcraft FL-910S (Standard V6) / Motorcraft FL-500S (EcoBoost) |
The 2019 Ford Flex uses either a 3.5L V6 naturally aspirated engine or a 3.5L V6 EcoBoost turbocharged engine. The standard V6 requires 5.5 quarts of SAE 5W-20 full synthetic oil, while the EcoBoost version requires 6.0 quarts. Using full synthetic oil provides superior protection and efficiency under normal driving conditions.
2018 Ford Flex Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 3.5L V6 (262 hp) / 3.5L V6 EcoBoost (355 hp) |
| Oil Capacity (with Filter) | 5.5 qt (5.2 L) – Standard V6 / 6.0 qt (5.7 L) – EcoBoost |
| Oil Capacity (without Filter) | 5.0 qt (4.7 L) – Standard V6 / 5.5 qt (5.2 L) – EcoBoost |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 5W-20 |
| Oil Change Interval | Every 7,500 miles or 12 months |
| Oil Drain Plug Torque | 20 lb-ft (27 N·m) |
| Recommended Filters | Motorcraft FL-910S (Standard V6) / Motorcraft FL-500S (EcoBoost) |
The 2018 Ford Flex offers both naturally aspirated and turbocharged 3.5L V6 engine options. Standard engine oil capacity is 5.5 quarts with filter, while the EcoBoost variant requires 6.0 quarts of SAE 5W-20 full synthetic oil.
2017 Ford Flex Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 3.5L V6 (262 hp) / 3.5L V6 EcoBoost (355 hp) |
| Oil Capacity (with Filter) | 5.5 qt (5.2 L) – Standard V6 / 6.0 qt (5.7 L) – EcoBoost |
| Oil Capacity (without Filter) | 5.0 qt (4.7 L) – Standard V6 / 5.5 qt (5.2 L) – EcoBoost |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 5W-20 |
| Oil Change Interval | Every 7,500 miles or 12 months |
| Oil Drain Plug Torque | 20 lb-ft (27 N·m) |
| Recommended Filters | Motorcraft FL-910S (Standard V6) / Motorcraft FL-500S (EcoBoost) |
The 2017 Ford Flex maintains consistent oil specifications across both engine options. The naturally aspirated 3.5L V6 requires 5.5 quarts, while the turbocharged EcoBoost version uses 6.0 quarts of SAE 5W-20 full synthetic oil.
2016 Ford Flex Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 3.5L V6 (262 hp) / 3.5L V6 EcoBoost (355 hp) |
| Oil Capacity (with Filter) | 5.5 qt (5.2 L) – Standard V6 / 6.0 qt (5.7 L) – EcoBoost |
| Oil Capacity (without Filter) | 5.0 qt (4.7 L) – Standard V6 / 5.5 qt (5.2 L) – EcoBoost |
| Recommended Oil Type | Full Synthetic (GF5 specification) |
| Viscosity | SAE 5W-20 |
| Oil Change Interval | Every 7,500 miles or 12 months |
| Oil Drain Plug Torque | 20 lb-ft (27 N·m) |
| Recommended Filters | Motorcraft FL-910S (Standard V6) / Motorcraft FL-500S (EcoBoost) |
The 2016 Ford Flex uses GF5 specification 5W-20 oil for both engine configurations. The standard 3.5L V6 takes 5.5 quarts with filter, while the EcoBoost requires 6.0 quarts.
2015 Ford Flex Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 3.5L V6 (262 hp) / 3.5L V6 EcoBoost (355 hp) |
| Oil Capacity (with Filter) | 5.5 qt (5.2 L) – Standard V6 / 6.0 qt (5.7 L) – EcoBoost |
| Oil Capacity (without Filter) | 5.0 qt (4.7 L) – Standard V6 / 5.5 qt (5.2 L) – EcoBoost |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 5W-20 |
| Oil Change Interval | Every 7,500 miles or 12 months |
| Oil Drain Plug Torque | 20 lb-ft (27 N·m) |
| Recommended Filters | Motorcraft FL-910S (Standard V6) / Motorcraft FL-500S (EcoBoost) |
The 2015 Ford Flex maintains identical oil capacity specifications to later model years. Both engine options require SAE 5W-20 full synthetic oil, with 5.5 quarts for the standard V6 and 6.0 quarts for the EcoBoost.
2014 Ford Flex Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 3.5L V6 (262 hp) / 3.5L V6 EcoBoost (355 hp) |
| Oil Capacity (with Filter) | 5.5 qt (5.2 L) – Standard V6 / 6.0 qt (5.7 L) – EcoBoost |
| Oil Capacity (without Filter) | 5.0 qt (4.7 L) – Standard V6 / 5.5 qt (5.2 L) – EcoBoost |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 5W-20 |
| Oil Change Interval | Every 7,500 miles or 12 months |
| Oil Drain Plug Torque | 20 lb-ft (27 N·m) |
| Recommended Filters | Motorcraft FL-910S (Standard V6) / Motorcraft FL-500S (EcoBoost) |
The 2014 Ford Flex continues using the same 3.5L V6 engine configurations with consistent oil specifications. Full synthetic SAE 5W-20 oil is recommended for both naturally aspirated and turbocharged variants.
2013 Ford Flex Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 3.5L V6 Ti-VCT (290 hp) / 3.5L V6 EcoBoost (365 hp) |
| Oil Capacity (with Filter) | 5.5 qt (5.2 L) – Standard V6 / 6.0 qt (5.7 L) – EcoBoost |
| Oil Capacity (without Filter) | 5.0 qt (4.7 L) – Standard V6 / 5.5 qt (5.2 L) – EcoBoost |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 5W-20 |
| Oil Change Interval | Every 7,500 miles or 12 months |
| Oil Drain Plug Torque | 20 lb-ft (27 N·m) |
| Recommended Filters | Motorcraft FL-910S (Standard V6) / Motorcraft FL-500S (EcoBoost) |
The 2013 Ford Flex received a mid-cycle facelift with updated Ti-VCT technology on the naturally aspirated engine. Oil capacity remains 5.5 quarts for the standard V6 and 6.0 quarts for the EcoBoost with SAE 5W-20 full synthetic oil.
2012 Ford Flex Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 3.5L V6 (262 hp) / 3.5L V6 EcoBoost (355 hp) |
| Oil Capacity (with Filter) | 5.5 qt (5.2 L) – Standard V6 / 6.0 qt (5.7 L) – EcoBoost |
| Oil Capacity (without Filter) | 5.0 qt (4.7 L) – Standard V6 / 5.5 qt (5.2 L) – EcoBoost |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 5W-20 |
| Oil Change Interval | Every 7,500 miles or 12 months |
| Oil Drain Plug Torque | 20 lb-ft (27 N·m) |
| Recommended Filters | Motorcraft FL-910S (Standard V6) / Motorcraft FL-500S (EcoBoost) |
The 2012 Ford Flex uses the first-generation 3.5L V6 Duratec engine with 262 horsepower. The EcoBoost option delivers 355 horsepower and requires 6.0 quarts of SAE 5W-20 oil.
2011 Ford Flex Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 3.5L V6 (262 hp) / 3.5L V6 EcoBoost (355 hp) |
| Oil Capacity (with Filter) | 5.5 qt (5.2 L) – Standard V6 / 6.0 qt (5.7 L) – EcoBoost |
| Oil Capacity (without Filter) | 5.0 qt (4.7 L) – Standard V6 / 5.5 qt (5.2 L) – EcoBoost |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 5W-20 |
| Oil Change Interval | Every 7,500 miles or 12 months |
| Oil Drain Plug Torque | 20 lb-ft (27 N·m) |
| Recommended Filters | Motorcraft FL-910S (Standard V6) / Motorcraft FL-500S (EcoBoost) |
The 2011 Ford Flex maintains consistent engine oil specifications with the naturally aspirated 3.5L V6 requiring 5.5 quarts. The turbocharged EcoBoost variant uses 6.0 quarts of SAE 5W-20 full synthetic oil.
2010 Ford Flex Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 3.5L V6 (262 hp) / 3.5L V6 EcoBoost (355 hp) |
| Oil Capacity (with Filter) | 5.5 qt (5.2 L) – Standard V6 / 6.0 qt (5.7 L) – EcoBoost |
| Oil Capacity (without Filter) | 5.0 qt (4.7 L) – Standard V6 / 5.5 qt (5.2 L) – EcoBoost |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 5W-20 |
| Oil Change Interval | Every 7,500 miles or 12 months |
| Oil Drain Plug Torque | 20 lb-ft (27 N·m) |
| Recommended Filters | Motorcraft FL-910S (Standard V6) / Motorcraft FL-500S (EcoBoost) |
The 2010 Ford Flex introduced the optional 3.5L EcoBoost engine alongside the standard naturally aspirated V6. Oil specifications remain consistent with 5.5 quarts for the base engine and 6.0 quarts for the turbocharged option.
2009 Ford Flex Engine Oil Capacity
| Specification | Detail |
|---|---|
| Engine | 3.5L V6 (262 hp) / 3.5L V6 EcoBoost (355 hp) |
| Oil Capacity (with Filter) | 5.5 qt (5.2 L) – Standard V6 / 6.0 qt (5.7 L) – EcoBoost |
| Oil Capacity (without Filter) | 5.0 qt (4.7 L) – Standard V6 / 5.5 qt (5.2 L) – EcoBoost |
| Recommended Oil Type | Full Synthetic |
| Viscosity | SAE 5W-20 |
| Oil Change Interval | Every 7,500 miles or 12 months |
| Oil Drain Plug Torque | 20 lb-ft (27 N·m) |
| Recommended Filters | Motorcraft FL-910S (Standard V6) / Motorcraft FL-500S (EcoBoost) |
The 2009 Ford Flex was the first model year of production with the 3.5L V6 Duratec engine as standard. Oil capacity for the naturally aspirated engine is 5.5 quarts, while the EcoBoost requires 6.0 quarts of SAE 5W-20 specification oil.
Oil Maintenance and Service Tips
Checking Engine Oil Level
Check engine oil level when the vehicle is parked on level ground with the engine off and cold. Remove the dipstick, wipe it clean, reinsert fully, and check the level between the MIN and MAX marks. Add oil if the level is near or below the MIN mark.
Oil Change Procedure
Regular oil filter replacement is essential during each oil change service. Use a 15mm socket to remove the drain plug and allow complete drainage before installing a new oil filter. Hand tighten the new filter, then tighten an additional three-quarters turn. Refill with the specified oil capacity and run the engine to check for leaks.
Driving Conditions and Intervals
| Condition | Interval |
|---|---|
| Normal Driving | Every 7,500 miles or 12 months |
| Severe Driving | Every 5,000 miles or 6 months |
Severe driving conditions include frequent short trips, extended idling, towing, dusty environments, or extreme temperatures. These conditions require more frequent oil change intervals to maintain engine protection and performance.
Synthetic Oil Benefits
Full synthetic oil provides superior protection at both high and low temperatures compared to conventional oil. Synthetic formulations resist thermal breakdown, maintain viscosity stability, and offer extended drain intervals when combined with regular filter replacement.
Frequently Asked Questions
What kind of oil does a Ford Flex use?
The Ford Flex uses SAE 5W-20 full synthetic engine oil meeting Ford WSS-M2C930-A or API SN Plus specifications. Both the naturally aspirated 3.5L V6 and turbocharged EcoBoost engines require this viscosity grade for optimal protection and fuel efficiency.
How much oil does a Ford Flex take?
A Ford Flex takes 5.5 quarts (5.2 liters) with filter for the standard 3.5L V6 engine. The 3.5L EcoBoost turbocharged engine requires 6.0 quarts (5.7 liters) with filter. Always verify the specific engine type before adding oil.
What is the recommended oil type for a Ford Flex?
Ford recommends full synthetic motor oil with SAE 5W-20 viscosity for all Ford Flex models from 2009 through 2019. Synthetic oil provides better engine protection, improved fuel economy, and extended service intervals compared to conventional oil formulations.
What is the oil change interval for a Ford Flex?
The recommended oil change interval for a Ford Flex is every 7,500 miles or 12 months under normal driving conditions. Severe driving conditions such as frequent short trips, towing, or extreme temperatures require more frequent changes every 5,000 miles or 6 months.
Can I use 5W-30 oil in a Ford Flex?
While 5W-30 oil can be used in a Ford Flex, the manufacturer recommends 5W-20 viscosity for optimal fuel economy and engine protection. Using 5W-30 may slightly reduce fuel efficiency but provides adequate lubrication, particularly in high-mileage engines or warmer climates.
What oil filter does a Ford Flex use?
The Ford Flex uses Motorcraft FL-910S oil filter for the standard 3.5L V6 engine. The 3.5L EcoBoost turbocharged engine requires Motorcraft FL-500S oil filter. Equivalent aftermarket filters include Mobil 1 M1-110A and K&N HP-1010 for the standard engine.
Conclusion
The Ford Flex requires 5.5 quarts of SAE 5W-20 full synthetic oil for the naturally aspirated 3.5L V6 engine and 6.0 quarts for the turbocharged EcoBoost variant. Using manufacturer-approved oil specifications and maintaining proper service intervals ensures reliable engine performance and longevity across all model years from 2009 through 2019. Regular oil filter replacement with Motorcraft filters and adherence to the recommended 7,500-mile service interval protects internal engine components and maintains optimal fuel efficiency.
