2018 Ford Explorer Maintenance Schedule: Your Comprehensive Guide

The 2018 Ford Explorer, part of the fifth generation (2011-2019), offers a compelling blend of family-friendly utility and modern features. To keep your Explorer running reliably and to maximize its lifespan, adhering to a diligent maintenance schedule is crucial. This guide, brought to you by an ASE-certified master technician, outlines the factory-recommended service intervals, common issues, severe-duty considerations, typical costs, and important recall awareness for your 2018 Ford Explorer.

Understanding Your 2018 Ford Explorer

The 2018 Explorer was available with several engine options: a 3.5L naturally aspirated V6 (standard on most trims), a 2.3L EcoBoost turbocharged four-cylinder, and a 3.5L EcoBoost turbocharged V6 (Sport and Platinum trims). All models came with a six-speed automatic transmission. Maintenance intervals and specific recommendations can vary slightly depending on your engine and drivetrain (FWD or AWD).

Factory Service Intervals

Ford's Intelligent Oil-Life Monitor (IOLM) system is the primary indicator for oil changes. However, for a comprehensive maintenance approach, a time/mileage-based schedule is also recommended, especially for other critical components.

Here's a generalized breakdown of key maintenance items:

Service Item	Interval (Normal Driving)	Notes	Approximate Cost Range*
Engine Oil & Filter	Every 7,500 - 10,000 miles or 6-12 months (whichever comes first, per IOLM)	Use synthetic blend 5W-20 for 3.5L V6, 5W-30 for 2.3L EcoBoost/3.5L EcoBoost.	$40 - $80
Tire Rotation	Every 7,500 miles or with every oil change	Promotes even tire wear and extends tire life.	$20 - $40 (often included with oil change)
Cabin Air Filter	Every 20,000 miles or 2 years	Essential for AC performance and interior air quality.	$30 - $70
Engine Air Filter	Every 30,000 miles or 3 years (inspect annually)	Crucial for engine breathing and fuel efficiency.	$25 - $60
Spark Plugs	3.5L V6: 100,000 miles, 2.3L EcoBoost/3.5L EcoBoost: 60,000 miles	Critical for proper engine combustion. EcoBoost engines require more frequent replacement.	$250 - $600 (EcoBoost typically higher)
Brake Fluid	Every 30,000 miles or 3 years	Absorbs moisture, leading to reduced braking performance.	$80 - $150
Automatic Transmission Fluid	Normal: 150,000 miles; Severe: 60,000 - 90,000 miles	Consult your owner's manual. Essential for transmission longevity.	$200 - $400
Coolant	Initial: 100,000 miles or 6 years; Then: 50,000 miles or 3 years	Maintains engine temperature. Use Motorcraft Orange Coolant.	$100 - $200
Transfer Case Fluid (AWD)	Every 60,000 miles	Critical for AWD system function.	$80 - $150
Differential Fluid (AWD)	Every 60,000 miles	Essential for differential health.	$80 - $150
Timing Belt/Chain	3.5L V6: Timing Chain (lifetime component, inspect for noise); EcoBoost engines: Timing Chain (lifetime component, inspect for noise)	The 2018 Explorer uses timing chains, designed to last the life of the engine with proper oil changes.	(Replacement only if noise/issue present; high cost)

*Note: These are estimated cost ranges for parts and labor, which can vary significantly based on your location, shop rates, and specific parts used.

Known Issues and Common Problems (Fifth Generation: 2011-2019)

The fifth-generation Ford Explorer, including the 2018 model, has a few well-documented issues that owners should be aware of. Proactive maintenance and awareness can help mitigate these problems.

• Water Leaks from Roof/A-Pillars: A common complaint involves water leaks, often originating from clogged sunroof drains or sealant issues around the roof rails or A-pillar trim. This can lead to water ingress in the cabin, potentially damaging electronics and interior components. Regular inspection and cleaning of sunroof drains are recommended.
• Exhaust Fumes in Cabin: Some owners have reported a sulphur or exhaust smell entering the cabin, particularly under hard acceleration. Ford issued a Technical Service Bulletin (TSB) for this issue, often involving inspecting and sealing body seams near the exhaust.
• PTU (Power Transfer Unit) Leaks/Failure (AWD Models): The PTU, which directs power to the rear wheels in AWD models, can be prone to leaks and premature failure, especially if the fluid is not serviced or if excessively high temperatures are reached. This is why regular PTU fluid changes are critical for AWD models. Listen for grinding or whining noises from the front end, which could indicate a PTU issue.
• Water Pump Failure (3.5L V6): While less prevalent in later models, some 3.5L V6 engines can experience internal water pump failures. Since the water pump is driven by the timing chain and located within the engine block, replacement is a complex and expensive job. Look for coolant leaks and monitor your temperature gauge. Regular coolant flushes help maintain the system.
• Electric Power Steering (EPS) Issues: Some owners have reported issues with the electric power steering system, leading to a loss of power assist or unusual noises. This often requires replacement of the steering rack.

Severe-Duty Adjustments

If your 2018 Ford Explorer operates under severe conditions, more frequent maintenance is necessary. Severe duty includes:

• Towing or hauling heavy loads frequently
• Driving in dusty, sandy, or muddy conditions
• Extensive idling or low-speed driving (e.g., heavy city traffic)
• Driving in extreme hot or cold temperatures
• Frequent short trips (less than 10 miles)

For severe duty, consider the following adjustments:

• Engine Oil & Filter: Shorten interval to 5,000 - 7,500 miles or 6 months.
• Transmission Fluid: Change every 60,000 - 90,000 miles.
• Transfer Case Fluid (AWD): Change every 30,000 miles.
• Differential Fluid (AWD): Change every 30,000 miles.
• Engine Air Filter: Inspect and potentially replace more frequently (every 15,000 miles or annually).
• Cabin Air Filter: Replace every 15,000 miles or annually.

Recall Awareness

Staying informed about recalls is a critical part of vehicle ownership. While recalls are issued by the manufacturer to address safety defects or non-compliance, they can also relate to functionality. For your 2018 Ford Explorer, some notable recalls have included:

• Rear Suspension Toe Link Fracture (NHTSA Campaign Number: 19V422000): This recall involved a potential fracture of the rear suspension toe link, which could lead to a loss of steering control. Owners were advised to have their vehicles inspected and repaired.
• Exhaust Manifold Studs/Heat Shield (NHTSA Campaign Number: 22V554000 for certain 2.3L Explorer/Aviator): While primarily affecting specific 2.3L engines in later models, it's worth checking for any similar engine/exhaust-related recalls, especially if you have the 2.3L EcoBoost.

Always check the official NHTSA website (nhtsa.gov/recalls) or Ford's recall lookup tool with your VIN to see if there are any outstanding recalls for your specific vehicle. Recalls are repaired free of charge by authorized dealerships.

Find a trusted shop on Repairius

Regular maintenance is the cornerstone of a long-lasting and reliable 2018 Ford Explorer. By following these guidelines and addressing potential issues proactively, you can enjoy many years of dependable service from your vehicle. Don't wait until a problem arises; find a trusted, ASE-certified shop on Repairius.com today to keep your Explorer in peak condition.