Hi How many km once spark plug should be changed for Honda Unicorn?

I have 1 year old Honda Unicorn

How many km once spark plug should be changed for Honda Unicorn for better mileage and life. My mechanic is recommending to change the spark plug once every 10,000 km for better mileage and maintenance, can anybody help me out in this

If your car has iridium spark plugs then do not need to be changed for 100,000 miles. The specifications pages will list the correct spark plugs.

Car manufacturers now recommend a full tune up every 100,00 miles. Years ago we would replace plugs every 25,000 miles or so but never sooner than that

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