What spark plugs does a Pontiac G6 use?

The Pontiac G6 spark plug type varies by year and engine. Newer models (2010+) typically use iridium plugs for longer service life. Older models may use platinum or copper. Check the specs below for your exact year.

How often should I change spark plugs on a Pontiac G6?

Modern Pontiac G6 models with iridium plugs can go 60,000-100,000 miles between changes. Older models with copper plugs need replacement every 30,000 miles. Replace sooner if you notice misfires, rough idle, or poor fuel economy.

What is the spark plug gap for a Pontiac G6?

Most Pontiac G6 models use a spark plug gap between 0.039" and 0.044" (1.0-1.1mm). Pre-gapped plugs from the OEM are recommended. Do not re-gap iridium-tip plugs as it can damage the electrode.

Can I upgrade to iridium spark plugs in my Pontiac G6?

Yes, upgrading from copper or platinum to iridium is generally safe and beneficial. Iridium plugs offer better ignitability, longer life, and improved fuel economy. Just match the correct heat range and gap for your engine.

⚡Spark Plug Type

Pontiac G6 Spark Plug Type

Find the correct spark plug type, gap size, and replacement interval for your Pontiac G6. Covers all model years with torque specs.

Factory Manual ConfirmationSpark Plug Type

Pontiac G6 Spark Plug Type

The Pontiac G6 typically uses iridium or platinum spark plugs. Newer models (2010+) use long-life iridium plugs rated for 60,000-100,000 miles. Check below for your specific year.

Spark plug type and gap depend on the exact engine. Confirm the engine code before buying plugs or setting the gap.

Exact Vehicle Check

Use the archive navigator when you need the exact engine, trim, or production-branch manual instead of a broad year-range summary.

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2005-2010

Spark Plug TypePlatinum or Iridium

Plug Gap0.039" - 0.044" (1.0 - 1.1mm)

Replacement Interval30,000 - 60,000 miles

Torque Spec13 - 20 ft-lbs

Quantity4 (inline-4) or 6 (V6)

Notes

→Iridium plugs last longer but cost more — do NOT re-gap iridium plugs
→Use a torque wrench — over-tightened plugs can strip aluminum heads
→Apply a thin coat of anti-seize to threads (unless plug is pre-coated)
→Use a spark plug socket with rubber insert to avoid cracking the ceramic insulator

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Frequently Asked Questions

What spark plugs does a Pontiac G6 use?: The Pontiac G6 spark plug type varies by year and engine. Newer models (2010+) typically use iridium plugs for longer service life. Older models may use platinum or copper. Check the specs below for your exact year.
How often should I change spark plugs on a Pontiac G6?: Modern Pontiac G6 models with iridium plugs can go 60,000-100,000 miles between changes. Older models with copper plugs need replacement every 30,000 miles. Replace sooner if you notice misfires, rough idle, or poor fuel economy.
What is the spark plug gap for a Pontiac G6?: Most Pontiac G6 models use a spark plug gap between 0.039" and 0.044" (1.0-1.1mm). Pre-gapped plugs from the OEM are recommended. Do not re-gap iridium-tip plugs as it can damage the electrode.
Can I upgrade to iridium spark plugs in my Pontiac G6?: Yes, upgrading from copper or platinum to iridium is generally safe and beneficial. Iridium plugs offer better ignitability, longer life, and improved fuel economy. Just match the correct heat range and gap for your engine.

Pontiac G6 Repair Guides

→Pontiac G6 Spark Plug Replacement →Pontiac G6 Ignition Coil Replacement →Pontiac G6 Oxygen Sensor Replacement

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