Understanding the 2018 Ford Explorer oil capacity is essential for any owner or prospective buyer committed to proper vehicle maintenance. This specific model year, part of Ford's best-selling mid-size SUV lineup, requires a precise amount of engine oil to ensure optimal performance and longevity. Getting this specification correct is not just about filling the dipstick; it is about safeguarding the complex machinery under the hood.
2018 Ford Explorer Engine Specifications
The 2018 model year offered consumers a choice of three distinct powertrains, which is the primary reason for multiple oil capacity figures. The base engine was a 2.3-liter EcoBoost, providing a balance of efficiency and power. For those seeking more capability, the mid-level trim often came equipped with a robust 3.5-liter Ti-VCT V6. Finally, the top-tier Platinum and Limited trims featured the high-performance 3.5-liter EcoBoost V6, a twin-turbocharged unit that demanded the highest level of lubrication.
Oil Capacity for the 2.3L Engine
For the 2.3-liter four-cylinder EcoBoost engine, the total oil system capacity is approximately 5 quarts. This figure represents the total amount of oil the filter and crankcase hold when fully filled. While this is a standard size for the class, it is critical to verify this specific volume during an oil change to prevent under-filling, which leads to poor lubrication, or over-filling, which can cause damaging pressure leaks and oil foaming.
Oil Capacity for the 3.5L V6 and EcoBoost Engines
Moving up the power spectrum, the 3.5-liter Ti-VCT V6 and the 3.5-liter EcoBoost engines share a larger oil system. These more complex powerplants, featuring additional cylinders and, in the case of the EcoBoost, turbochargers, require more lubrication to function correctly. The total oil capacity for these configurations is generally around 6 quarts. This increase is necessary to ensure that all moving parts, particularly the timing chain assembly and turbocharger bearings, remain properly cooled and lubricated under high-stress conditions.
The Importance of Using the Correct Oil
Adhering to the correct 2018 Ford Explorer oil capacity is only half the battle; selecting the right type of oil is equally important. Ford specifies that the engine oil should meet the Ford WSS-M2C947-A or Ford WSS-M2C947-B specification. Furthermore, the viscosity grade, typically 5W-20 or 5W-30, must be confirmed on the oil container. Using a non-approved oil or the wrong viscosity can lead to reduced fuel economy, increased engine wear, and potentially void the manufacturer's warranty.
Step-by-Step Oil Change Procedure
When performing an oil change on a 2018 Explorer, following a precise procedure ensures that the measured capacity is accurate. First, the vehicle should be warmed up for a few minutes to allow the old oil to flow freely. Then, safely lift the vehicle and locate the drain plug. After allowing the oil to drain completely, the old filter should be replaced. It is recommended to add approximately 4.5 quarts initially through the fill hole, followed by checking the dipstick. The final top-off should be done slowly until the dipstick indicates the correct level, ensuring the total reaches the specified capacity without spillage.
Common Mistakes to Avoid
Even experienced DIY enthusiasts can make errors when dealing with the 2018 Ford Explorer oil system. One of the most frequent mistakes is relying solely on the dipstick after adding the full 6 or 5 quarts without verifying the level. Another common error is neglecting to replace the oil filter gasket or using an incorrect filter, which can lead to leaks. Always double-check for any drips after starting the engine and driving for a short distance, as this confirms that the capacity and installation are correct.
