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Parts for your 2015 Mitsubishi Lancer-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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NGK Iridium Spark Plug - FR5EI

NGK Iridium Spark Plug - FR5EI

Confirm Vehicle
$32
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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
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Showing 1 - 39 of 47 products

Understanding Spark Plugs in the 2015 Mitsubishi Lancer

The 2015 Mitsubishi Lancer, like most traditional petrol-powered vehicles, does use spark plugs as an essential component of its engine system. Spark plugs play a critical role in ignition by igniting the air-fuel mixture inside the combustion chamber. This ignition starts the engine's power cycle and keeps it running smoothly.

For owners or enthusiasts of the 2015 Mitsubishi Lancer, understanding the purpose and maintenance of spark plugs can save time, money and improve vehicle performance. If the spark plugs are worn or faulty, the Lancer may struggle with hard starting, poor fuel economy or even engine misfires. Let's explore what spark plugs do and why keeping them in good condition is vital for this model.

Spark plugs are small but mighty components fitted at the top of each cylinder in the engine head. Inside the Mitsubishi Lancer's petrol engine, the spark plug produces an electrical spark that ignites the compressed air-fuel mixture. This ignition causes a small explosion, pushing the piston down and generating power to move the car.

The spark plugs must maintain a consistent and strong spark, which depends heavily on their condition. Over time, carbon deposits, oil fouling or electrode wear can reduce the spark plug's performance. This is why regular inspection and replacement during servicing is recommended.

When servicing a 2015 Mitsubishi Lancer, mechanics typically check for the spark plug's gap, electrode wear and signs of fouling or damage. If any issues are noticed, the spark plugs should be replaced with new ones that meet the manufacturer's specifications. Using the right spark plugs ensures efficient combustion, better fuel economy and smoother engine running.

The replacement intervals for spark plugs on the 2015 Mitsubishi Lancer often depend on the type of spark plugs fitted. Standard copper spark plugs usually require replacement every 30,000 to 50,000 kilometres. However, more durable platinum or iridium spark plugs can last between 80,000 and 120,000 kilometres. It is always advised to refer to the vehicle's service manual or check with a Mitsubishi dealer for exact recommendations.

Maintenance of spark plugs goes beyond simple replacement. Proper installation is crucial to avoid issues like cross-threading or incorrect gapping. The spark plug gap should be set correctly according to Mitsubishi's specifications to ensure optimal combustion. If the gap is too large or too small, it can lead to rough idling, power loss or misfires.

On the 2015 Lancer, spark plugs are located in easy-to-access positions on the engine head. This accessibility makes it straightforward for both professional mechanics and skilled DIYers to perform inspection and replacement. However, it is recommended to have spark plug servicing done during regular maintenance intervals to avoid unexpected drivability issues.

Choosing quality spark plugs is another important aspect of maintenance. Using genuine or high-quality aftermarket parts guarantees that the spark plugs will withstand the heat and pressure inside the combustion chamber. While low-cost plugs may seem attractive, they often degrade faster and can cause damage or poor engine performance.

Common signs that the spark plugs in a 2015 Mitsubishi Lancer might need attention include:

  • Difficulty starting the engine
  • Engine misfires during acceleration or idling
  • Poor fuel economy or increased fuel consumption
  • Rough or unstable idle
  • Loss of power, especially under load
  • Check Engine Light illuminated with ignition or misfire codes

If any of these symptoms occur, a spark plug inspection should be part of the diagnosis process. Replacing worn or fouled spark plugs often resolves these issues quickly and keeps the engine running at peak efficiency.

Besides spark plugs, it is also a good idea to inspect ignition coils and leads during servicing. These components work closely with spark plugs to deliver the spark necessary for combustion. Damaged ignition components can mimic spark plug problems and lead to further confusion if not correctly diagnosed.

Overall, the spark plugs in a 2015 Mitsubishi Lancer are a small but essential part that deserves regular attention to maintain peak engine performance. Proper maintenance helps the car to run smoothly, improves fuel efficiency, reduces emissions and prevents costly repairs down the track. Whether cruising around town or hitting the open road, keeping spark plugs in top shape ensures the Lancer stays reliable and ready to roll.