2019 Ford Explorer Coolant Type – What You Need To Know For Peak

ByRobert Lozano

Your 2019 Ford Explorer needs the right coolant to keep its engine running smoothly, especially during extreme weather or demanding off-road adventures. Using the incorrect coolant can lead to serious, expensive damage, so understanding the precise 2019 Ford Explorer coolant type is crucial for every owner.

This guide will walk you through everything you need to know about your Explorer’s cooling system, ensuring you select the correct coolant and maintain optimal engine temperature for reliable performance on any journey.

Introduction

Getting stuck with an overheating engine on a long road trip or a challenging trail is a nightmare scenario for any driver. The cooling system is the unsung hero that prevents this, and its effectiveness hinges on the right coolant. If you own a 2019 Ford Explorer, knowing the exact coolant specifications isn’t just about maintenance; it’s about safeguarding your investment and ensuring your adventures are never cut short by a preventable issue.

This article will demystify the 2019 Ford Explorer coolant type, explaining why it matters, what to look for, and how to perform basic checks. We’ll cover the specific formulations recommended by Ford, the risks of using the wrong type, and practical advice for DIYers and off-road enthusiasts alike.

Understanding Your 2019 Ford Explorer’s Cooling System

Your Explorer’s cooling system is a complex network designed to dissipate the immense heat generated by the engine. It circulates a specialized fluid, the coolant, through the engine block, radiator, and heater core. This fluid absorbs heat from the engine and then releases it to the outside air via the radiator.

Proper coolant function is vital. It prevents the engine from overheating, which can cause catastrophic damage like warped cylinder heads or a blown head gasket. It also prevents freezing in cold temperatures and inhibits corrosion within the cooling system components.

The Official 2019 Ford Explorer Coolant Type: Yellow or Gold Premium Coolant

For your 2019 Ford Explorer, the manufacturer specifically recommends a yellow or gold colored, long-life, organic acid technology (OAT) antifreeze/coolant. This formulation is often referred to by its Ford specification designation: Ford WSS-M97B44-D2.

This particular coolant is designed to provide superior protection against corrosion and cavitation for your Explorer’s specific engine components, including aluminum alloys. It boasts an extended service life, meaning it doesn’t need to be replaced as frequently as older coolant types. Always ensure the coolant you purchase meets this specific Ford specification.

Why is the Specific Coolant Type So Important?

Using the wrong coolant in your 2019 Ford Explorer can lead to a host of problems, ranging from minor inefficiencies to major mechanical failures. Modern engines, especially those designed for performance and longevity like in the Explorer, rely on precise chemical compositions in their coolants.

Older coolants, such as traditional green ethylene glycol, are not compatible with the materials used in your Explorer’s cooling system. Mixing coolant types or using an incorrect formulation can cause:

  • Corrosion: The wrong coolant can aggressively attack metal components like the radiator, water pump, and engine block, leading to leaks and eventual failure.
  • Deposit Formation: Incompatible coolants can create sludge and scale that clog passages within the engine and radiator, reducing cooling efficiency.
  • Seal Degradation: Certain coolant additives can degrade the rubber and plastic seals within the cooling system, causing leaks.
  • Foaming: Incorrect coolant chemistry can lead to excessive foaming, which reduces heat transfer and can lead to overheating.
  • Reduced Lifespan: Even if immediate failure doesn’t occur, using the wrong coolant can significantly shorten the lifespan of critical cooling system components.

Identifying the Correct Coolant: Decoding Labels

When you’re at the auto parts store, looking for the right coolant can be confusing. Here’s what to look for on the label for your 2019 Ford Explorer:

  • Color: While color can be a general indicator, it’s not always definitive. Ford’s recommended coolant for your Explorer is typically yellow or gold. However, some aftermarket brands may use different colors for their OAT formulations.
  • Ford Specification: The most reliable indicator is the Ford specification. Look for Ford WSS-M97B44-D2 printed clearly on the bottle. This ensures the coolant has undergone rigorous testing and meets Ford’s exact requirements.
  • Type: It should be an OAT (Organic Acid Technology) coolant. Avoid coolants labeled as IAT (Inorganic Acid Technology) or HOAT (Hybrid Organic Acid Technology) unless they specifically state compatibility with Ford WSS-M97B44-D2.
  • Concentration: Coolant is usually sold as a concentrate (requiring mixing with distilled water) or as a pre-mixed 50/50 solution. Always follow the manufacturer’s recommendation or your service manual. For most applications, a 50/50 mix is ideal for optimal freeze and boil-over protection.
See also Ford Escape Oil Change Frequency – Maximizing Engine Life

When to Check and Change Your Coolant

Regular checks and timely changes of your coolant are part of essential vehicle maintenance. For your 2019 Ford Explorer, follow the recommended service intervals outlined in your owner’s manual. However, there are also visual and sensory cues that indicate it’s time for a check.

Routine Coolant Level Checks

The easiest and most frequent check you can perform is the coolant level.

  1. Ensure the Engine is COLD: Never open the radiator cap or coolant reservoir cap on a hot engine. The system is pressurized, and hot coolant can cause severe burns.
  2. Locate the Coolant Reservoir: This is usually a translucent plastic tank connected to the radiator, often marked with “Min” and “Max” fill lines.
  3. Visually Inspect the Level: The coolant level should be between the “Min” and “Max” marks when the engine is cold. If it’s low, it could indicate a leak or evaporation over time.
  4. Check Coolant Condition: While you’re there, look at the coolant’s color and clarity. It should be bright and free of debris, rust, or an oily film. Discolored or sludgy coolant needs immediate attention.

Signs Your Coolant Needs Attention

Beyond routine checks, be aware of these warning signs:

  • Overheating Temperature Gauge: If your temperature gauge climbs into the red zone, pull over safely and shut off the engine immediately.
  • Sweet Smell: A persistent sweet smell under the hood can indicate a coolant leak.
  • Puddles Under the Vehicle: Check for colored puddles (typically yellow/gold for your Explorer) beneath your parked car.
  • Reduced Heater Performance: If your cabin heater isn’t blowing hot air, it could be a sign of low coolant or air in the system.

Coolant Change Intervals

Your 2019 Ford Explorer’s owner’s manual will specify the recommended coolant change interval. Generally, for the specified Ford WSS-M97B44-D2 coolant, this is typically around every 100,000 miles or 5 years, whichever comes first. However, extreme driving conditions, such as frequent towing or off-roading in harsh environments, might necessitate more frequent changes.

How to Top Off or Replace Your Coolant (DIY Guide)

Performing a coolant top-off or a full flush can be a rewarding DIY task, saving you money and giving you a deeper understanding of your vehicle. Always prioritize safety and refer to your owner’s manual for specific procedures for your 2019 Ford Explorer.

Tools and Materials You’ll Need:

  • Correct Coolant: Ford WSS-M97B44-D2 specified yellow/gold OAT coolant (concentrate or pre-mixed).
  • Distilled Water: If using concentrate, you’ll need pure distilled water. Tap water contains minerals that can cause deposits.
  • Drain Pan: A large capacity pan to catch old coolant.
  • Funnel: A clean funnel for adding new coolant.
  • Gloves and Eye Protection: Coolant is toxic; wear protective gear.
  • Socket Set/Wrenches: To remove radiator drain plugs or lower radiator hoses.
  • Pliers: For hose clamps.
  • Shop Rags: For cleaning up spills.
  • Cooling System Flush Kit (Optional): For a thorough flush.

Topping Off Low Coolant:

  1. Ensure Engine is COLD.
  2. Locate the Coolant Reservoir.
  3. If using pre-mixed coolant: Slowly pour the correct coolant into the reservoir until it reaches the “Max” line.
  4. If using concentrate: Mix the concentrate with distilled water in a clean container at a 50/50 ratio (unless your manual specifies otherwise). Then, pour the mixture into the reservoir to the “Max” line.
  5. Replace the reservoir cap securely.
  6. Start the engine and let it run for a few minutes. Monitor the temperature gauge and check for any leaks. Top off again if necessary after the system has circulated.

Performing a Coolant Flush and Replacement:

  1. Ensure Engine is COLD.
  2. Locate the radiator drain plug (usually at the bottom of the radiator) or be prepared to disconnect the lower radiator hose.
  3. Place the drain pan beneath the drain plug or hose.
  4. Open the radiator drain plug or carefully loosen the clamp and remove the lower radiator hose. Allow all old coolant to drain completely.
  5. Close the drain plug or reattach the hose.
  6. (Optional) Flush the system: Fill the system with distilled water and run the engine for 10-15 minutes until it reaches operating temperature. Drain this water. Repeat if necessary until the drained water runs clear.
  7. Fill the system with the new coolant. Use the correct 50/50 mixture of Ford WSS-M97B44-D2 specified coolant and distilled water. Fill the reservoir to the “Max” line.
  8. Bleed the system: This is a critical step to remove air pockets.
    • Locate the coolant bleed screw (often on or near the thermostat housing) or slightly loosen the upper radiator hose clamp.
    • With the engine running, slowly add coolant to the reservoir as the level drops.
    • Once coolant begins to flow steadily from the bleed screw (or upper hose), tighten the screw or reattach the hose securely.
    • Allow the engine to reach operating temperature, with the heater set to high.
  9. Monitor the temperature gauge and check for leaks. Top off the reservoir if needed after the engine cools down.
  10. Dispose of old coolant properly. It is toxic and should not be poured down drains or into the environment. Many auto parts stores and recycling centers accept used coolant.
See also 2012 Ford Fusion Sel V6 AWD – Mastering Performance And All-Weather

Off-Roading and Extreme Conditions: Extra Coolant System Considerations

For those who push their 2019 Ford Explorer beyond the pavement, the cooling system is put under immense stress. Off-roading, especially in hot climates, steep inclines, or low-speed, high-load situations (like rock crawling), can dramatically increase engine temperatures.

Preparing for Off-Road Adventures:

  • Pre-Trip Inspection: Always perform a thorough coolant level and condition check before any significant off-road excursion.
  • Carry Extra Coolant: Pack a jug of the correct 50/50 pre-mixed coolant and a jug of distilled water. This is essential for topping off or in case of a minor leak.
  • Inspect Hoses and Clamps: Check for any signs of wear, cracks, or leaks in the radiator hoses and ensure clamps are tight. Loose clamps are a common cause of leaks on rough terrain.
  • Radiator Airflow: Ensure the front of your radiator is free of mud, leaves, or debris that could restrict airflow and reduce cooling efficiency. Consider a radiator skid plate for protection.
  • Fan Operation: Verify that your engine cooling fan is operating correctly. Listen for it to kick in when the engine temperature rises.

Dealing with Overheating on the Trail:

If your Explorer starts to overheat during an off-road trip:

  1. Pull Over Safely: Find a safe spot to stop and shut off the engine.
  2. Allow to Cool: Let the engine cool down completely before attempting to check the coolant level or add fluid. This can take an hour or more.
  3. Check for Obvious Leaks: Look for dripping coolant or steam.
  4. Add Coolant (if safe): Once cool, add the correct coolant mixture to the reservoir.
  5. Assess the Situation: If the overheating was due to extreme conditions and the level is now correct, you might be able to proceed cautiously. If there’s a significant leak, you may need to call for assistance.

Frequently Asked Questions About 2019 Ford Explorer Coolant Type

What happens if I mix different types of coolant in my 2019 Ford Explorer?

Mixing different coolant types, especially OAT with IAT or older conventional coolants, can cause chemical reactions that neutralize their protective properties. This can lead to rapid corrosion, scale buildup, and damage to seals, significantly shortening the life of your cooling system components. It’s best to completely flush the system before switching coolant types.

Can I use a universal coolant in my 2019 Ford Explorer?

While some “universal” coolants claim broad compatibility, it’s always best to use a coolant that specifically meets the Ford WSS-M97B44-D2 specification for your 2019 Ford Explorer. Universal coolants may not offer the same level of protection for your vehicle’s specific materials and can potentially cause issues down the line. Stick to the manufacturer’s recommendation for optimal performance and longevity.

How do I know if my coolant is still good?

The coolant should be bright yellow or gold and clear. If it’s dark brown, rusty, has visible particles, or looks milky or oily, it has degraded and needs to be replaced. A simple coolant test strip can also check the pH and inhibitor levels for a more precise assessment.

Is it safe to drive with a slightly low coolant level?

Driving with a slightly low coolant level is risky. Even a small deficit can reduce the cooling system’s efficiency, leading to the engine running hotter than it should. This can cause premature wear on engine components and, in extreme cases, lead to overheating and severe damage. It’s best to top it off immediately and investigate the cause of the low level.

Conclusion: Protecting Your Explorer’s Heart

The cooling system is the lifeblood of your 2019 Ford Explorer. By understanding and using the correct 2019 Ford Explorer coolant type – the Ford WSS-M97B44-D2 specified yellow/gold OAT coolant – you’re making a critical investment in your vehicle’s reliability and longevity. Whether you’re commuting, towing, or venturing off-road, ensuring your cooling system is in top condition means you can focus on the drive, not on the temperature gauge.

Regular checks, timely maintenance, and using the right fluids are fundamental to keeping your Explorer performing at its best for years to come. Stay safe and enjoy the journey!

Robert Lozano
Latest posts by Robert Lozano (see all)

Similar Posts