2024 Honda CR-V Spark Plug Type & Gap

Quick reference

Why the right plug matters

Your 2024 Honda CR-V relies on precisely engineered spark plugs to deliver optimal performance, fuel efficiency, and emissions control. Using the correct spark plug type, heat range, and gap is crucial.

Heat Range: Spark plugs are designed with a specific "heat range," which refers to their ability to dissipate heat from the combustion chamber. A plug that's too hot can lead to pre-ignition and detonation, damaging your engine. A plug that's too cold can cause fouling and misfires. Honda engineers have specified the ideal heat range for your CR-V's engine, so sticking to OEM or equivalent aftermarket plugs is vital.

Electrode Metal: Modern vehicles like the CR-V typically use iridium or platinum spark plugs. These precious metals offer superior durability and longevity compared to traditional copper plugs, allowing for extended replacement intervals (often 100,000 miles or more). Copper plugs, while excellent conductors, wear out much faster. For your CR-V, both the 1.5L turbo and 2.0L hybrid engines utilize long-life iridium plugs from the factory.

How to gap a spark plug

While many modern iridium or platinum spark plugs come pre-gapped from the factory, it’s always a good practice to check the gap before installation, especially with aftermarket plugs. The gap is the distance between the center and ground electrodes. An incorrect gap can lead to misfires, reduced fuel economy, and poor engine performance.

To check and adjust the gap:

1. Use a wire-type spark plug gapping tool: These tools are more accurate for fine-wire electrodes than ramp-style gapping tools, which can damage the delicate iridium or platinum tip.
2. Gently slide the correct wire gauge into the gap: It should have a slight drag. If the gap is too small, use the gapping tool to gently bend the ground electrode outwards. If the gap is too large, carefully tap the ground electrode on a clean, hard surface to close the gap. Never bend the center electrode.
3. Double-check: Re-measure to ensure the gap is precisely to specification (0.043 in or 1.1 mm for your CR-V).

Replacement procedure tips

Replacing spark plugs on your 2024 Honda CR-V is a relatively straightforward DIY task, but a few tips can make the process smoother:

• Coil-on-Plug (COP) System: Your CR-V uses a coil-on-plug ignition system, meaning each spark plug has its own ignition coil directly on top of it. To access the plugs, you'll need to disconnect the electrical connector from each coil and then unbolt and remove the coil. Be gentle with the connectors and wires.
• Anti-Seize Debate: There's ongoing debate about using anti-seize compound on spark plug threads. Many modern spark plugs have a special coating on the threads that prevents seizing, and applying anti-seize can alter the torque specification, potentially leading to over-tightening and damage. Honda recommends not using anti-seize for the factory-installed plugs and their OEM replacements. If you choose to use it (against manufacturer recommendation), be sure to reduce the torque spec by approximately 10-20%.
• Dielectric Grease: It's good practice to apply a small amount of dielectric grease inside the spark plug boot (the part of the coil that connects to the spark plug). This helps seal out moisture, prevents corrosion, and makes future removal easier. Avoid getting grease on the actual electrode tip.
• Torque Wrench is Your Friend: Always use a torque wrench to tighten your spark plugs to the specified value of 11 lb-ft (15 Nm). Over-tightening can strip the cylinder head threads or damage the spark plug, while under-tightening can cause the plug to vibrate loose and lead to misfires or damage.
• Work on a Cool Engine: Always perform spark plug replacement on a cold engine to prevent stripping threads in the aluminum cylinder head.

Known issues

The 2024 Honda CR-V engines (1.5L Turbo and 2.0L Hybrid) do not have widespread, commonly known spark plug-related issues like the Ford 5.4L 3-valve engine's propensity for breaking plugs or GM's ionization-sensing coil problems. As long as you use the correct OEM or high-quality aftermarket spark plugs and adhere to the recommended replacement intervals and torque specifications, you should experience trouble-free operation.

Need plugs replaced? Find a shop on Repairius.