Spark Plugs....when to change?

[Kilatz]

Any bros know what are the signs to look for when you need to change the spark plugs? Read that its between 40k to 80k depending on the type of plugs that you use.

Since the day I bought my car, i have driven nearly 40k without any problem from my engine. But one day just happen to talk about spark plugs with my friends hence the question of "when to change"?

 

Any inputs or advice?

[Aeromania]

30k km

[Tigershark1976]

refer to your owner manual, different car have different requirement. usually changed at 40K but if you re-gap and clean it up... it could be use till ur COE expire...

Edited April 2, 2011 by Tigershark1976

[Timex1441]

in the older cars, mechanics can take out n inspect the spark plugs to judge if need to change....not sure abt the newer cars....maybe they juz go by the km travelled n change as per manufacturers manual.

[Csnewbie]

spark plugs changing relates to nos of times you start engines i think.

 

when hard to start is time to service/change?

[Mrbytez]

I just did a change for mine at 45k...

[Sbtyong]

Spark Plugs are relatively cheap, just change yearly.

[Breadandwater]

  On 4/3/2011 at 5:30 PM, Sbtyong said:

Spark Plugs are relatively cheap, just change yearly.

 

This is true but entirely unnecessary. Some spark plugs can last 100k km or more.

[Kilatz]

Just changed my plugs. Used KR16 orig Toyota parts. Costs me 25 dollars for everything plus labour.... but that is special prie for me :) checked at Autobacs they charge 35 dollars.

I use normal plugs.... I prefer to use till 30 to 40k km and then change new ones rather than use iridium plugs. It's not too expensive anyway and I dont drive aggressively.

 

Thanks for the inputs.

 

By the way, my mech inspected my plugs and says it's still good to use for 10 to 15k km more but I already made up my mind to change hahaha.

[Hoytusa84]

wow.. I never change since the day I bought my plug til the day I sold my car haha!!

[Hoytusa84]

wow.. I never change since the day I bought my car til the day I sold it haha!!

[Ladykillerz]

  On 4/2/2011 at 10:11 AM, Tigershark1976 said:

refer to your owner manual, different car have different requirement. usually changed at 40K but if you re-gap and clean it up... it could be use till ur COE expire...

 

+1 agreed!

[BoyBoyBalls]

i just changed a new pair of brisks after 5000-6000 km... the old ones failed on me and started misfiring but the power is good