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The Danger of Anti-Seize on Modern Plugs
When you apply anti-seize to modern ACDelco Spark Plugs, the compound acts as a powerful lubricant. This drastically alters the torque specifications. What feels like a safe, snug fit to your hand is actually severe over-torquing. The result? The ACDelco Spark Plugs snap completely in half inside the block, or even worse, they permanently strip out the delicate aluminum threads of your cylinder head, leading to catastrophic engine damage.
The Dry Installation Rule
To avoid thousands of dollars in mechanical repairs, you must update your maintenance habits. Modern ACDelco Spark Plugs feature a specialized nickel-plated shell coating designed specifically to prevent seizing. Because of this advanced engineering, you must install these modern spark plugs completely dry. No anti-seize, no oil, no exceptions. Thread them in dry and always use a calibrated torque wrench to hit the exact factory specification to keep your engine running flawlessly.