Are these spark plugs bad???

[CubanEvo]

Ok so today I changed my plugs at my house and i pulled them out and they were black, brown, and white then i put the new plugs in they are the NGK's and the truck drives way better. This is weird my truck only has 3,700 miles.

 

[Silverback]

What did they do? Shit in your yard? Drink your beer?? Run off with your old lady???

 

[SRT-11]

It's another flaming bag on the doorstep!

DON'T STEP ON IT EARL!!!

Damn you devil woman I'll stomp on what I please!

AW IT'S POOP!

 

[azpyroguy]

Ok so today I changed my plugs at my house and i pulled them out and they were black, brown, and white then i put the new plugs in they are the NGK's and the truck drives way better. This is weird my truck only has 3,700 miles.

Well.. the colors usually mean:

Black = Rich/Fat (too much fuel)
White = Leaned out
Brownish = Just Right, perfect mixture.

 

[Kevan]

Presents for my brothers.....

 

[CubanEvo]

Presents for my brothers.....

Thanks for that sheet man.:rock:

Mine looked like high speed glazing

 

[Kevan]

It'd be easy to confuse High Speed Glazing with Normal Wear.

If you're experiencing mis-firing when you romp on the throttle, that would be a sign.
Otherwise I'd say it's just normal wear.