[vc_row][vc_column][vc_column_text]Spark Plug Type Performance Differences
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Product description

ACDelco Professional RAPIDFIRE Single Platinum Performance Spark Plugs are designed for everyday use and can be used in most vehicles on the road today. These premium aftermarket spark plugs have high-quality suppressor that helps prevent misfiring. They have an improved plug to boot seal and a pure copper core for greater durability.

ACDelco’s Professional Spark Plugs meet a wide range of vehicle applications and budgets, making them the perfect choice when it is time to replace your plugs. Choose from our Double Platinum, RAPIDFIRE single platinum, Conventional, Marine, and Outdoor Power Equipment lines depending on your performance needs. Diesel vehicle owners can also get the ACDelco advantage with our high-quality Glow Plugs. We’ve got a plug for almost any vehicle on the road today.

Whatever the vehicle, whatever the application, you can bet that there is an ACDelco Spark Plug to do the job. Whether you are choosing a Professional or Specialty plug, from our Iridium, Double Platinum, RAPIDFIRE single platinum, Conventional, Glow Plug, Marine, or Outdoor Power Equipment lines, you will know that you are getting a century’s worth of experience and know-how packed into that plug. Advanced features and competitive warranty coverage adds up to the ACDelco advantage.

From the manufacturer

Good Maintenance Practices

Removing your RAPIDFIRE spark plug

Grasp the spark plug boot and gently rotate it 90° counterclockwise. Pull the spark plug boot and cable away from the spark plug. If necessary, use spark plug boot removing tool. Do not grab or violently pull spark plug cables.

Use the correct deep socket size to loosen each spark plug one or two turns. Note: To remove spark plugs from aluminum heads, allow the engine to cool. The heat of the engine, in combination with a spark plug that is still hot, may cause the spark plug threads to strip the cylinder head upon removal.

Inspecting your spark plug

Brush or air blast dirt away from the well areas before removing spark plugs. Caution: Use goggles to protect eyes from dirt when applying compressed air to spark plug wells.

Remove each spark plug and place each one in a tray by cylinder number. This will help identify and relate any unusual condition to the cylinder involved.

Installing new ACDelco RAPIDFIRE spark plugs

Apply dielectric grease into the boot area to reduce the chance of exterior tracking on the buttress tower of the spark plug. This grease also promotes a good heat transfer between the spark terminal screw and boot terminal.

Before installing new spark plugs, use a gap guide to make sure your new spark plugs have the correct gap.

Signs of Wear and Troubleshooting

Signs that your spark plugs need to be replaced:

Engine has trouble starting, hesitates, or cuts out.

Sluggish engine performance, loss of engine power, or decreased fuel economy.

Lack of acceleration or loss of speed when driving uphill.

Cracks in the upper or lower portion of the spark plug insulator.

Chipped or broken insulator tip.

Damaged spark plug boot.

Features and Benefits

  • 100 % Pure Copper Core, which provides great heat transfer and increases plug durability.
  • Platinum on center electrode enables superior spark characteristics and reduces voltage requirements of the ignition system.
  • Ribless insulator to improve plug to boot seal.

ACDelco Professional

The Professional category of high-quality aftermarket auto parts and products covers most GM vehicles as well as many other makes and models (varies by product line). Most of the current ACDelco line falls into this category, which is a high-quality alternative to GM OE products.

Frequently Asked Questions

Q: Should I change my spark plugs every 3,000 miles?

A: No, it depends on what type of spark plug your vehicle requires. Refer to your owner’s manual or contact your vehicle’s manufacturer for more information.

Q: Can changing my spark plugs improve my engine’s performance?

A: Yes, but spark plugs may not be the only factor impacting performance. Replacing old spark plugs may temporarily improve poor engine performance due to reduced demand on the ignition system. However, this is not the cure for poor engine performance caused by worn rings, faulty carburetion, worn distributor parts, or other engine performance issues.

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