When should I replace the spark plugs in my Nissan Micra?

I have a 2012 Nissan Micra and I'm wondering when is the best time to replace the spark plugs. They've been in there for about 80,000KM.

It is recommended to replace the spark plugs every 100,000KM on the Nissan Micra. However, if you notice a decrease in performance or difficulty starting the engine, it may be best to replace them sooner.

In general, it's a good idea to replace spark plugs every 30,000KM to maintain optimal performance. However, some newer cars can go up to 150,000KM before replacement is necessary. It's important to consult your user's manual for specific recommendations for your Nissan Micra.