Is it necessary to regularly replace the spark plugs in a Vauxhall Zafira Life?

I have been driving my Vauxhall Zafira Life for 3 years now and I haven't replaced the spark plugs since. Should I be doing this regularly to maintain optimal performance?

Yes, it is recommended to replace spark plugs every 30,000 miles for optimal performance and fuel efficiency. Neglecting to do so may result in engine misfires and decreased fuel economy.

It's not necessary to replace spark plugs at a specific mileage, but it's a good idea to have them checked every year. This can help catch any potential issues before they become bigger problems.

I've been driving a Vauxhall Zafira Life for 5 years and have only replaced the spark plugs once. It hasn't caused any issues for me so far, but I would recommend following the manufacturer's recommendation for replacement intervals.