I am about to hit 50k and i am not having any misfires so my dad told me new sparkplugs are not nessicary. I have read around and some people advise to change them at the 50k mark. input?

 

Might as well man just for a piece of mind. It wont hurt anything

 

sugestions for good sparkplugs for a 2.4 planning on getting to 200 hp mark in the future if that makes a difference

 

GM's recommendation, per the owner's manual, is to have the sparkplugs changed at 100,000 miles. There's a full breakdown of recommended service parameters starting on p. 397.

Hope this is helpful,
Sarah
GM Customer Service

 

Nice job Sarah!! Lol. Wow this manual is worth it sometimes eheheh. Not always, but sometimes
Christian

 

i just turned 50K and am on my 6th set or so. I change them every other oil change

 

i changed mine at 40k something miles

they may be good for that many miles but why risk it? People with boost change out even quicker.

 

Thats a little too much. The new platinum sparks that we have nowadays don't even need to be changed really

 

he could be running coppers

 

Copper on a 2009? I would be really surprised.

 

i run the NGK 3787

Dude with a boosted and tuned car they do. Pull yours and see what they look like if you havent pulled them yet

 

Change them every other oil change bro. Just use the basic plugs. Mine runs perfect on no touching the gap they come at. 06' 2.0 SS

 

Yes but damn! Every oil change?
I'm on NGK coldest plugs, they have about 5k miles on. Should I check them?

 

every OTHER oil change

 

correct i do them every other oil change.

at about 5K youre good. If you want then pull them just to check them out.

 

Waste of money. Change them in another 50,000 miles.

 

Changing plugs every other oil change is the dumbest thing I have ever heard of. GM knows what they are talking about when they say plugs last for 100K miles.

 

spark plugs last UP TO 100k miles under ideal conditions. Change em at 50k its time, they probably visible wear, and you wouod probably notice a bit of improved fuel economy. Change your air filter ans fuel filter if you have an external one while your at it.

 

I swapped mine at 50k but the stockers are still good and sitting in the garage to collect dust.

 

They also say the auto trans never has to have a fluid change too...you believe that?

Also have a friend who works at a dealership telling me they F-ed up on the OLM on 3.6 motors so timing sets are getting trashed because people run the percent all the way down.

 

The biggest issue with the 3.6s is that people dont check the oil. SO the OLM says its okay to go 7-10k miles and people never check it during that time, which means it runs low, and accelerates oil wear, and the monitor cant calcualte for that, it always assumes a full crankcase. So they just shortened the OLM interval. now it never goes past 7500 on the 3.6 no matter what