Ford Explorer 2018 Oil Type – The Essential Guide For Longevity
Selecting the correct ford explorer 2018 oil type is the most critical step in maintaining your engine’s health and ensuring its longevity. Depending on whether you have the 2.3L EcoBoost or the 3.5L V6, you will need either SAE 5W-30 or 5W-20 motor oil that meets Ford’s specific WSS performance standards. Using the right viscosity and a high-quality filter prevents premature wear and protects sensitive turbocharger components from heat damage.
Every vehicle owner knows that regular maintenance is the heartbeat of a reliable ride. When you are staring at the massive wall of oil bottles at the local auto parts store, it is easy to feel overwhelmed by the choices. You want to protect your investment, especially if you use your Explorer for family road trips, daily commuting, or light off-roading.
In this guide, I will break down exactly which ford explorer 2018 oil type you need based on your specific engine configuration. We will also dive into the technical specifications, the tools you need for a DIY change, and why certain oil grades are non-negotiable for Ford’s modern powerplants. By the end of this article, you will have the confidence of a seasoned technician when performing your next service.
Whether you are a weekend warrior under the hood or just a careful owner who wants to verify what the shop is putting in your car, clarity is key. We are going to look at the differences between synthetic blends and full synthetics, as well as the exact capacities required for each engine. Let’s get your Ford running at peak efficiency.
Understanding Your ford explorer 2018 oil type Requirements
The 2018 Ford Explorer came with three distinct engine options, and they do not all use the same lubricant. It is a common mistake to assume a “one size fits all” approach for SUVs. Before you buy your supplies, you must identify which engine is sitting under your hood to ensure you select the correct ford explorer 2018 oil type.
For those driving the 2.3L EcoBoost four-cylinder engine or the 3.5L EcoBoost V6, Ford specifies SAE 5W-30 motor oil. These engines utilize turbochargers that operate at extremely high temperatures and speeds. The 5W-30 weight provides a slightly thicker protective film at operating temperatures, which is vital for cooling and lubricating the turbo bearings.
If your Explorer is equipped with the naturally aspirated 3.5L Ti-VCT V6 (non-turbo), the requirement shifts to SAE 5W-20. This thinner oil is designed to reduce internal friction and improve fuel economy in non-turbocharged applications. Using a 5W-30 in this engine won’t necessarily cause immediate damage, but it can slightly decrease your MPG and affect the variable valve timing system over time.
Decoding the Ford WSS Standards
Viscosity is only half the story; the oil must also meet Ford’s internal performance specifications. For the 5W-30 engines, look for oil that meets WSS-M2C946-B1. For the 5W-20 engine, the spec is WSS-M2C945-B1. These codes ensure the oil has the necessary additives to prevent sludge buildup and protect against low-speed pre-ignition (LSPI), a common issue in direct-injected engines.
You will usually find these specifications printed in small text on the back of the oil bottle. Most major brands like Pennzoil, Mobil 1, and Valvoline offer products that meet these Ford requirements. Stick to these standards to maintain your powertrain warranty and keep the internal components clean.
Oil Capacities and Filter Specifications
Once you have identified the correct ford explorer 2018 oil type, you need to know how much to buy. Nothing is more frustrating than being half a quart short when you are finishing a DIY job. The capacities vary slightly between the engine blocks, so always double-check your dipstick after filling.
- 2.3L EcoBoost I4: This engine requires 5.7 quarts (5.4 liters) of oil.
- 3.5L Ti-VCT V6: This engine requires 6.0 quarts (5.7 liters) of oil.
- 3.5L EcoBoost V6: This engine also requires 6.0 quarts (5.7 liters) of oil.
I always recommend buying a 5-quart jug and two individual 1-quart bottles. This gives you exactly what you need for the fill, plus a little extra to keep in the trunk for top-offs between changes. Remember that these capacities include the volume held within the oil filter.
Choosing the Right Oil Filter
The filter is just as important as the oil itself. For the 2018 Explorer, the standard choice is the Motorcraft FL-500S for the 3.5L engines and the Motorcraft FL-910S for the 2.3L EcoBoost. Motorcraft filters are the original equipment (OE) choice and feature a silicone anti-drainback valve.
This valve prevents oil from draining out of the upper engine parts when the car is off. This is crucial for preventing “dry starts,” where the engine runs for a few seconds without lubrication. If you choose an aftermarket brand like Wix or Mobil 1, ensure it is a high-efficiency synthetic media filter designed for extended drain intervals.
Synthetic vs. Synthetic Blend: What is Best?
Ford’s factory fill for the 2018 Explorer is typically a Synthetic Blend. This is a mixture of conventional and synthetic base oils that offers a good balance of protection and cost. However, many enthusiasts and mechanics (myself included) strongly prefer Full Synthetic oil, especially for the EcoBoost models.
Full synthetic oil offers superior thermal stability. In a turbocharged engine, the oil can reach very high temperatures as it passes through the turbo center housing. Conventional or blended oils can “coke” or turn into carbon deposits under this extreme heat, which eventually clogs oil lines and destroys the turbo.
Using a full synthetic ford explorer 2018 oil type ensures that the lubricant remains fluid in sub-zero temperatures and maintains its viscosity during long summer hauls. If you plan on keeping your Explorer past the 100,000-mile mark, the extra few dollars for full synthetic is the best insurance policy you can buy.
Step-by-Step DIY Oil Change Guide
Performing your own maintenance is rewarding and ensures the job is done right. Before you start, gather your tools: a 15mm wrench for the drain plug, an oil filter wrench, a drain pan, a funnel, and some shop rags. Always perform this on a level surface and use jack stands or ramps for safety.
- Warm the Engine: Run the car for about 5 minutes. Warm oil flows faster and carries more contaminants out of the pan than cold, thick oil.
- Drain the Old Oil: Locate the 15mm drain plug on the bottom of the oil pan. Position your pan and carefully remove the plug. Watch out, as the oil will be hot!
- Replace the Filter: While the oil is draining, unscrew the old filter. Take a bit of new oil and smear it on the rubber gasket of the new filter. This ensures a proper seal and makes it easier to remove next time.
- Install the Plug: Once the dripping slows to a minimum, reinstall the drain plug. Don’t over-tighten it; “snug” is usually enough to prevent leaks without stripping the threads.
- Add New Oil: Using a funnel, pour in the recommended amount of the correct ford explorer 2018 oil type. Start the engine, let it run for a minute, then shut it off and check the dipstick level.
Don’t forget to reset your Intelligent Oil-Life Monitor (IOLM). This is done through the steering wheel controls in the “Settings” or “Vehicle” menu on your dashboard. This system calculates your oil life based on driving habits, idling time, and temperatures, rather than just a fixed mileage interval.
Common Issues: Oil Dilution and Turbo Health
Modern direct-injection engines, like those in the 2018 Explorer, can sometimes suffer from fuel dilution. This happens when a small amount of unburnt gasoline bypasses the piston rings and enters the oil pan. Over time, this thins out the oil and reduces its lubricating effectiveness.
To combat this, I recommend a “severe service” interval. Even if your dashboard says you have 30% oil life left, if you do a lot of short trips or heavy towing, consider changing your oil every 5,000 miles. Frequent changes are the only way to remove fuel-contaminated oil and protect your engine’s internal bearings.
Another “pro tip” for EcoBoost owners: after a long highway drive or a spirited climb, let the engine idle for 30 to 60 seconds before shutting it off. This allows the oil to circulate and cool the turbochargers down. Shutting down a hot turbo immediately can cause the oil inside it to “bake,” leading to expensive repairs down the road.
Frequently Asked Questions About ford explorer 2018 oil type
How often should I change the oil in my 2018 Ford Explorer?
While the Intelligent Oil-Life Monitor may allow for up to 10,000 miles under ideal conditions, most experts recommend a 5,000 to 7,500-mile interval. If you drive in dusty environments, tow frequently, or live in extreme cold, stick to the 5,000-mile mark for maximum protection.
Can I use 5W-30 instead of 5W-20 in the 3.5L non-turbo engine?
In an emergency, you can, but it is not ideal for long-term use. The 3.5L Ti-VCT engine is clearanced for 5W-20. Using a thicker oil can slightly impact the response of the Variable Cam Timing (VCT) solenoids and might marginally reduce your fuel economy.
Does the 2018 Ford Explorer require special oil for the turbochargers?
It doesn’t require “special” oil, but it does require oil that meets the Ford WSS-M2C946-B1 specification. This spec ensures the oil can handle the high-shear environment of a turbocharger without breaking down or forming deposits on the turbine shaft.
Is it okay to switch from synthetic blend to full synthetic?
Yes, you can switch to full synthetic at any time. There is a common myth that you can’t go back and forth, but modern oils are fully compatible. Switching to full synthetic is actually one of the best upgrades you can give your 2018 Explorer for better engine cleanliness.
Final Thoughts on Proper Lubrication
Taking care of your SUV doesn’t have to be a mystery. By understanding the specific ford explorer 2018 oil type for your engine, you are taking the most important step in vehicle maintenance. Remember: 5W-30 for the EcoBoost turbos and 5W-20 for the naturally aspirated V6.
Always prioritize high-quality filters and consider moving to a full synthetic oil if you want the absolute best for your vehicle. Whether you are prepping for a cross-country trek or just keeping the family car ready for the school run, consistency is your best friend. A well-lubricated engine is a happy engine.
Stay safe on the road, keep those tools handy, and don’t be afraid to get your hands a little dirty. Your Ford Explorer will thank you with many more miles of reliable service!
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