What spark plugs does a Honda Insight use?

The Honda Insight 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 Honda Insight?

Modern Honda Insight 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 Honda Insight?

Most Honda Insight 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 Honda Insight?

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

Honda Insight Spark Plug Type

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

Quick Answer

The Honda Insight 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.

2009-2014

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

Shop on Amazon →Full Repair Guide →

2003-2008

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

→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

Shop on Amazon →Full Repair Guide →

2000-2002

Spark Plug TypeCopper or Platinum

Plug Gap0.028" - 0.044" (0.7 - 1.1mm)

Replacement Interval30,000 miles

Torque Spec13 - 18 ft-lbs

Quantity4-8 (varies by engine)

Notes

→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)

Shop on Amazon →Full Repair Guide →

Frequently Asked Questions

What spark plugs does a Honda Insight use?: The Honda Insight 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 Honda Insight?: Modern Honda Insight 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 Honda Insight?: Most Honda Insight 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 Honda Insight?: 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.

Honda Insight Repair Guides

→Honda Insight Spark Plug Replacement →Honda Insight Ignition Coil Replacement →Honda Insight Oxygen Sensor Replacement

Browse all Honda guides →Browse all Honda Insight guides →

More Honda Insight Guides

Browse all Spark Plug Type pages →

Need a full step-by-step repair guide?

Start Free AI Diagnosis →

100% Free — No signup required