2018 Ford Escape Spark Plug Replacement Guide

Quick reference

Why the right plug matters

Choosing the correct spark plug for your 2018 Ford Escape is crucial for optimal engine performance, fuel efficiency, and longevity. Spark plugs are not a universal component; they are engineered with specific heat ranges and electrode materials to match the demands of each engine.

Heat Range: This refers to the plug's ability to dissipate heat. A plug that's too hot can lead to pre-ignition and knocking, damaging your engine. A plug that's too cold can cause fouling, leading to misfires. Ford's EcoBoost engines, with their forced induction and higher combustion temperatures, require a colder plug to prevent pre-ignition. The 2.5L Duratec, being naturally aspirated, can tolerate a slightly hotter plug.

Electrode Metal:

• Iridium: This is the most common material for modern engines, especially those with longer service intervals like your Escape. Iridium plugs offer superior durability and a finer electrode tip, leading to a more consistent, powerful spark and excellent fuel economy. They are designed for extended life, often lasting 60,000 to 100,000 miles.
• Platinum: Platinum plugs also offer good durability and a longer lifespan than copper, typically lasting 60,000 miles. They are a good balance of performance and cost. Double platinum plugs have platinum on both the center and ground electrodes, further extending their life.
• Copper: While excellent conductors, copper plugs wear out much faster and are generally not recommended for modern vehicles like the 2018 Escape, which are designed for long-life iridium or platinum plugs. Using copper plugs in an engine designed for iridium can lead to reduced performance and premature wear.

How to gap a spark plug

Properly gapping your spark plugs is essential for a strong, consistent spark. While many modern iridium and platinum plugs come pre-gapped, it's always a good idea to double-check. For your 2018 Ford Escape, refer to the