The 2018 Ford Explorer 3.5 offers robust V6 power and flexible seating for midsize SUV buyers. Understanding the precise oil capacity helps owners maintain the engine and plan changes confidently.
Below is a quick reference table that summarizes key fluid capacities for the 2018 Ford Explorer 3.5, including engine oil, automatic transmission fluid, coolant, and washer fluid.
| Fluid | Capacity | Fill Method | Notes |
|---|---|---|---|
| Engine Oil (4.6L V6) | 5.0 quarts with filter | Drain and fill via oil drain plug | Synthetic blend recommended |
| Automatic Transmission | 10.0 quarts | Fill through transmission pan or cooler line | Use Ford WS fluid; refill with engine running |
| Engine Coolant | 11.0 quarts | Fill expansion tank and radiator | 50/50 mix with distilled water |
| Windshield Washer Fluid | 1.25 gallons | Pour into underhood reservoir | Use antifreeze formula in winter |
2018 Ford Explorer 3.5 Engine Oil Specifications
For the 3.5L V6 equipped 2018 Ford Explorer, the manufacturer specifies 5.0 quarts of oil when including the filter. This capacity supports the efficient operation of the twin-scroll V6 under everyday driving and light towing conditions.
Using the correct viscosity, such as 5W-20 or 5W-30, helps protect bearings and maintain fuel economy. Always check the oil level with the engine off and on level ground to avoid overfilling or underfilling during maintenance.
During an oil change, replacing the drain plug gasket and washer prevents leaks. Owners performing DIY changes should dispose of used oil at certified recycling centers and confirm the new filter is properly seated before starting the engine.
2018 Ford Explorer 3.5 Transmission Fluid Capacity
The automatic transmission in the 2018 Ford Explorer 3.5 requires approximately 10.0 quarts of the correct fluid. Accurate filling is essential to prevent shifting issues and maintain warranty conditions.
Ford recommends using Ford WS automatic transmission fluid. The fill procedure typically involves starting the engine, cycling through gear positions, and checking the level while the transmission is warm for precise results.
When replacing the transmission filter or performing a pan service, technicians may need additional fluid to refill the cooler lines. Rely on measured fills rather than emptying an entire quart container without verification.
Coolant and Other Key Fluid Capacities
The cooling system on the 2018 Explorer 3.5 holds roughly 11.0 quarts of antifreeze. Proper coolant mixture and level protect against freezing, boiling, and corrosion inside the aluminum engine block and heater core.
Windshield washer capacity is about 1.25 gallons, stored in a front underhood tank. Using a winter-rated mixture prevents freezing and ensures reliable washer jet performance during harsh weather.
Correct fluid management across the vehicle supports long term durability, smoother shifts, and clearer visibility. Owners should refer to the door jamb sticker for verified capacities and refill procedures for each system.
Maintenance Tips and Best Practices
- Confirm oil capacity with the exact filter model fitted to your vehicle.
- Use only Ford WS transmission fluid for automatic transmission service.
- Check coolant concentration and level at least twice per year.
- Replace washer fluid seasonally to prevent freezing or contamination.
- Document fluid changes to track maintenance history and resale value.
Reliability and Long Term Fluid Management
Consistently maintaining the correct oil, transmission fluid, coolant, and washer fluid levels helps the 2018 Ford Explorer 3.5 deliver dependable daily driving and reduces the risk of costly repairs.
Following the scheduled service intervals and using the recommended capacities ensures the powertrain and auxiliary systems remain in optimal condition throughout ownership.
FAQ
Reader questions
How much engine oil does a 2018 Ford Explorer 3.5 take with the filter?
It requires about 5.0 quarts of oil including the new filter.
What type of transmission fluid should I use in my 2018 Explorer 3.5?
Use Ford WS automatic transmission fluid for proper shifting and warranty compliance.
Can I use any coolant in my 2018 Ford Explorer 3.5?
Use a 50/50 mix of Ford-approved antifreeze and distilled water for best corrosion protection.
How do I check the washer fluid level on my 2018 Ford Explorer 3.5?
Open the underhood reservoir cap and visually check the level; refill up to the max line with washer fluid.