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Should i change the Spark plugs.?

Hi folks,good afternoon,my car is just over 5 years old,but mileage is just 27,000km[16,770 miles],should i change the spark plugs.?It is still running fine,no misfiring...so what is your opinion.?Thanks...

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Old 06-27-2014, 07:47 AM   #1 (permalink)
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Default Should i change the Spark plugs.?

Hi folks,good afternoon,my car is just over 5 years old,but mileage is just 27,000km[16,770 miles],should i change the spark plugs.?It is still running fine,no misfiring...so what is your opinion.?Thanks...
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Old 06-27-2014, 08:24 AM   #2 (permalink)
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Unless you have been running crappy gas or have other problems that might affect the combustion chamber, your plugs should still be in good shape. You can pull them and do a visual inspection (plenty of pics on the Intertubes).
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Old 06-27-2014, 08:25 AM   #3 (permalink)
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No need if no issue
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Old 06-27-2014, 08:36 AM   #4 (permalink)
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Originally Posted by kenchan View Post
No need if no issue
on the other hand you have many issues lol

OP, they should be fine and still good to go
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Old 06-27-2014, 08:49 AM   #5 (permalink)
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Originally Posted by SouthArk370Z View Post
Unless you have been running crappy gas or have other problems that might affect the combustion chamber, your plugs should still be in good shape. You can pull them and do a visual inspection (plenty of pics on the Intertubes).
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Old 06-27-2014, 08:51 AM   #6 (permalink)
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No need if no issue
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Old 06-27-2014, 10:38 AM   #7 (permalink)
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Quote:
Originally Posted by SouthArk370Z View Post
Unless you have been running crappy gas or have other problems that might affect the combustion chamber, your plugs should still be in good shape. You can pull them and do a visual inspection (plenty of pics on the Intertubes).
I ran the car with Shell V-Power from new,this is the best petrol here[most expensive,so should be the best],the problem is if i take out the spark plugs,to inspect[alot of job],must well change it,right..?So i just want to know,what you guys think.?
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Old 06-27-2014, 10:49 AM   #8 (permalink)
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Your plugs have 17k and they are like brand new. The plug should be good up to 75-100k. If you like throwing away money I will send you my home address so that you can give it to me instead.
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Old 06-27-2014, 10:54 AM   #9 (permalink)
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Quote:
Originally Posted by Chan Chee Hoe View Post
I ran the car with Shell V-Power from new,this is the best petrol here[most expensive,so should be the best],the problem is if i take out the spark plugs,to inspect[alot of job],must well change it,right..?So i just want to know,what you guys think.?
It doesn't make the car run worse to change them when nothing is wrong with them but it doesn't do anything to make the car run better either.

In newer cars spark plugs are one of those things that you can really tell instantly if they need to be replaced.

It's really



hit or miss...

Yeah!
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Old 06-27-2014, 11:47 AM   #10 (permalink)
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... if i take out the spark plugs,to inspect[alot of job],must well change it,right..?
Do you change your oil every time you check it? Getting to the plugs is not the easiest job on this car but it's far from the most difficult.

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So i just want to know,what you guys think.?
I think you ought to quit worrying about the plugs. As others have mentioned, modern plugs fired by a modern ignition are usually good for 50,000-100,000 miles (sometimes more). If the engine starts running rough, then start wondering if the plugs are the problem. Until then, forget about them.
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Old 06-27-2014, 01:36 PM   #11 (permalink)
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I think if you do a lot of mods to the engine, then you'll require different (better?) spark plugs. But the reason is not because the original (OEM) ones are 'bad'; and more so because they can't handle the required load of work since they were not originally design for that type of application. Most guys that get forced induction (turbo) upgrade their spark-plugs as part of the kit. Also some NA engine mods will benefit from spark plug upgrades.

Other than that the old adage stands true; if it ain't broke don't fix it
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Old 06-28-2014, 01:47 AM   #12 (permalink)
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If u got an oil cooler I recommend one step warmer NGK 7 plugs....
And its a good idea to at least pull the plugs and chek 'em....AntiSeize 'em if they check out good, re-installing....
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Old 06-28-2014, 02:15 AM   #13 (permalink)
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Originally Posted by gbrettin View Post
Your plugs have 17k and they are like brand new. The plug should be good up to 75-100k. If you like throwing away money I will send you my home address so that you can give it to me instead.
Thanks Guys,i think,i will drive another year....Don't want to waste $...for it.
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Old 06-28-2014, 02:37 AM   #14 (permalink)
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No.

Check them again in another 60K miles... you still will probably not need them changed.
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Old 06-28-2014, 04:10 AM   #15 (permalink)
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No.

Check them again in another 60K miles... you still will probably not need them changed.


It's not time that makes them go bad it's the amount of miles that matters. So don't think in years and months think 50-60k miles before you change and/or look at them. Unless you start to notice a problem earlier of course.
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