First time replacing all 8...regardless of the current conditions of the plugs.


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I'm seeing some matte brown on some plugs, I read up that it could be "dry fouling"

Any experienced spark plug replacers, any judgement/ comments on the plugs?

Got this 91 Camaro practically as a hand-me-down. so I have no idea what this car has been through for the past 20 years.

Any help will be appreciated.

 

Hello Krishan!!

Your plugs look fine!!

Clean them, or for the cost, replace them!!!

 

Chocolate milk! Yummy! Also, means proper combustion when on a spark plug.

 

I'd replace, it looks like some combustion gases were escaping between the steel and porcelain. Or it's dirt build up, hard to tell.

 

When replacing plugs, carefully inspect secondary ignition components. Wires, cap and rotor wear out at about the same rate as the plugs. Wires may appear okay but if you check more cosely you amy find that they are more stiff than when new, that the boots are less supple. The cap and rotor will likely have powdery deposits from arching of the high voltage passing through them. Where the center cap "button" contacts the center of the rotor, you will find black powdery deposits. To assure best results with your tune up, replace all of these parts together. Also, coat the inner surface of the plug boots liberally with dielectric grease to seal out oxygen and prevent electrolysis.

 

and so you can get the boots off later if you ever gotta take them off again.

 

Spark plugs are cheap. Replace them every 2 years even if they don't look like they need replacing.