How do I know when my spark plugs need replacing?

Symptoms include rough idling, misfires, hard starts, or decreased fuel efficiency.

How often should spark plugs be replaced?

Typically every 30,000–100,000 miles, depending on the plug type (copper, platinum, or iridium).

Worn plugs can lead to engine misfires, poor acceleration, and higher fuel consumption.

Yes. Fresh plugs help ensure efficient combustion, improving fuel efficiency and engine performance.

Most replacements take about 30 minutes to an hour, depending on the engine configuration.

How do I know when my spark plugs need replacing?
Symptoms include rough idling, misfires, hard starts, or decreased fuel efficiency.
How often should spark plugs be replaced?
Typically every 30,000–100,000 miles, depending on the plug type (copper, platinum, or iridium).
What happens if I don’t replace bad spark plugs?
Worn plugs can lead to engine misfires, poor acceleration, and higher fuel consumption.
Do spark plugs affect fuel economy?
Yes. Fresh plugs help ensure efficient combustion, improving fuel efficiency and engine performance.
How long does a spark plug replacement take?
Most replacements take about 30 minutes to an hour, depending on the engine configuration.