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...

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).

No need if no issue

on the other hand you have many issues lol

OP, they should be fine and still good to go

:iagree:

:iagree:

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.?

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.

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

https://encrypted-tbn3.gstatic.com/i...RC7gKd5Fh7NwJe

hit or miss...

Yeah!

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.

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.

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 :)

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....

Thanks Guys,i think,i will drive another year....Don't want to waste $...for it.

No.

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

:iagree:

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.