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Parts for your 2018 Honda Civic-Spark plugs

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Permatex Dielectric Tune-Up Grease 9g - PX81150

Permatex Dielectric Tune-Up Grease 9g - PX81150

$24
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Explore 4WD & Adventure

GV Tools 3 Piece Spark Plug Socket Set - GV012

GV Tools 3 Piece Spark Plug Socket Set - GV012

$14
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Penrite Greenkeepers 2 Stroke Oil 2.5L - SEGNKTS0025

Penrite Greenkeepers 2 Stroke Oil 2.5L - SEGNKTS0025

$37
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Mechpro Spark Plug Wrench 16mm - MPBE101

Mechpro Spark Plug Wrench 16mm - MPBE101

$12
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Mechpro Spark Plug Wrench 2-In-1 16/21mm - MPBE102

Mechpro Spark Plug Wrench 2-In-1 16/21mm - MPBE102

$14
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Penrite Greenkeepers 2 Stroke Oil 1L - SEGNKTS001

Penrite Greenkeepers 2 Stroke Oil 1L - SEGNKTS001

$27
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T&E Tools Ignition Spark Tester

T&E Tools Ignition Spark Tester

$39
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Toledo Spark Plug Gap Gauge - 302163

Toledo Spark Plug Gap Gauge - 302163

$5
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Repco Spark Plug Extension Bar 21mm - RT24846
Clearance

Repco Spark Plug Extension Bar 21mm - RT24846

$29
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Penrite Greenkeepers 2 Stroke Oil 20L - SEGNKTS020

Penrite Greenkeepers 2 Stroke Oil 20L - SEGNKTS020

$297
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T&E Tools Spark Plug Boot Pliers

T&E Tools Spark Plug Boot Pliers

$30
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Repco Petrol Cylinder Compression Tester - RST160

Repco Petrol Cylinder Compression Tester - RST160

$130
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Nulon Engine Stop Smoke 500ml - SS
Clearance

Nulon Engine Stop Smoke 500ml - SS

$10
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Castrol OUTBOARD 2T 2 Stroke Oil 4L - 3377729

Castrol OUTBOARD 2T 2 Stroke Oil 4L - 3377729

$66
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T&E Tools Spark Plug Thread Repair Kit 14mm - 4100

T&E Tools Spark Plug Thread Repair Kit 14mm - 4100

$35
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Toledo Spark Plug Starter - 302157
Clearance

Toledo Spark Plug Starter - 302157

$6
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Toledo Spark Plug Thread Chaser - 302168

Toledo Spark Plug Thread Chaser - 302168

$29
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Toledo HD Spark Plug Firing Tester - 302167

Toledo HD Spark Plug Firing Tester - 302167

$36
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Toledo Spark Plug Thread Kit - 302300

Toledo Spark Plug Thread Kit - 302300

$42
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Powerbuilt Spark Plug Socket - 643001

Powerbuilt Spark Plug Socket - 643001

$9
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Powerbuilt Spark Plug Socket - 643004

Powerbuilt Spark Plug Socket - 643004

$8
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Toledo Spark Plug Thread Kit 14mm - 302176

Toledo Spark Plug Thread Kit 14mm - 302176

$42
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Powerbuilt Spark Plug Socket - 643005

Powerbuilt Spark Plug Socket - 643005

$11
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Toledo Spark Plug Tool 21mm Hex - 302223

Toledo Spark Plug Tool 21mm Hex - 302223

$56
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Repco Heavy Duty Spark Plug Boot Pliers - RST63

Repco Heavy Duty Spark Plug Boot Pliers - RST63

$46
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Toledo Spark Plug Tester - Box Type - 302165

Toledo Spark Plug Tester - Box Type - 302165

$22
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Castrol OUTBOARD 2T 2 Stroke Oil 1L - 3377726

Castrol OUTBOARD 2T 2 Stroke Oil 1L - 3377726

$45
Fitment Notes:
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T&E Tools Electronic Ignition Spark Tester

T&E Tools Electronic Ignition Spark Tester

$56
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Toledo In-Line Ignition Spark Tester - 302026

Toledo In-Line Ignition Spark Tester - 302026

$32
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Showing 1 - 39 of 45 products

Spark Plug Maintenance for Your 2018 Honda Civic

Regular maintenance is key to keeping your 2018 Honda Civic running smoothly, and one of the essential aspects of this upkeep involves tending to its spark plugs. Spark plugs might be small components, but they play a crucial role in your vehicle's performance by igniting the air/fuel mixture in the engine's cylinders. This ignition process facilitates the engine's operation, ensuring your Civic is both efficient and powerful.

When it comes to maintaining your Honda Civic, it's important to know when and how to change its spark plugs. Here's a breakdown of essential details and steps for dealing with your spark plugs:

  • Signs of Worn-Out Spark Plugs: If you encounter issues such as a rough engine idle, difficulties in starting the car, sluggish acceleration, or even increased fuel consumption, these might indicate your spark plugs are due for replacement.
  • Frequency of Replacement: The recommended interval for replacing spark plugs in a 2018 Honda Civic depends on the type of plugs currently installed. If you're using iridium or platinum spark plugs, they typically last about 100,000 kilometres. For copper plugs, consider a replacement at around 20,000 to 30,000 kilometres.

Replacing your spark plugs isn't just about ticking off a checklist item during routine maintenance, it ensures your engine performs at its best. Here's how you can approach this task:

  1. Preparation: Before diving into the replacement task, gather the required tools, including a ratchet, spark plug socket, and a gap gauge. Additionally, ensure you have the correct replacement plugs for your Civic, typically NGK or Denso plugs, which are often recommended for Honda vehicles.
  2. Ensure Safety: Turn off the engine and let it cool down. Working on a warm engine can lead to burns or inaccurate fitting due to thermal expansion.
  3. Locate and Remove the Old Spark Plugs: Open the bonnet and locate the spark plug wires. Gently disconnect each wire by pulling the boot, not the wire, to avoid any damage. Use the socket to carefully unscrew and remove the old spark plugs.
  4. Inspect the Old Spark Plugs: Examine the retrieved spark plugs for signs of wear: a blackened appearance or deposits can indicate a rich fuel mixture, while a white or blistered tip might suggest an overheating issue. This can provide insights into your engine's condition.
  5. Install the New Spark Plugs: Prior to installation, inspect and adjust the gap of the new spark plugs according to the specifications listed in your Civic's owner manual using a gap gauge. This is crucial for optimal ignition. Carefully screw in the new plugs by hand to avoid cross-threading, followed by a final snug fit using the socket.
  6. Reconnect the Spark Plug Wires: Once the new plugs are securely in place, reconnect each spark plug wire, ensuring a firm connection by pushing until you feel or hear a click.

Proper spark plug maintenance offers numerous benefits: improved fuel efficiency, smoother starts, and reduced emissions. It also prevents potential engine misfires, providing cleaner operation. Besides changing spark plugs, ensuring they're clean and correctly gapped can extend their life and optimise engine performance.

If you're not confident undertaking this work by yourself, a trusted local mechanic can provide professional assistance. Regular servicing that includes attention to spark plugs ensures your Civic delivers the driving experience you expect from a Honda, with reliability and economic operation firmly in place.