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About aford15

  • Rank
  • Birthday 03/13/1956

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  • Name
  • Location
    South Florida
  • Gender
  • Drives
    2007 Avalanche LT, 5.3 LMG
  • Interests
    Trucks, Harleys, Music, Welding, Mechanics, Tractors
  1. I've read through this thread and saw a lot of posts on preferring or not preferring platinum, or I've used these for the past 20 years, etc. Fact is, engines have changed a lot in recent years. I make my living in the field of instrumentation and controls. In my humble opinion...people with bigger and more powerful brains then mine engineered components that worked well as a circuit. This circuit is made up of coil packs, ignition wires, and plugs. They were chosen because they deliver the right amount of voltage without loss, produce an arc at the right length for efficient ignition, and at the correct temperature to achieve maximum efficiency of combustion, while not causing undesirable wear on the engine. When you start changing out components you're altering a lot of variables than you may not consider like excess O2 for instants. You might spend $30 for a set of plug wires instead of $70, but what kind of voltage drop will you get? Will they deliver the correct voltage from the coil packs to the plugs? Remember the old commercials "Keep you GM car all GM"? That wasn't just to make you spend more money. Unless you're planning on putting your truck on a dyno to get the exact specs you're looking for, my advice is to stick with OEM. I found this on www.sparkplugs.com and concerning Iridium, and I found it interesting: Iridium is a precious metal that is 6x harder and 8x stronger than platinum, has a melting point 1,200°(F) higher, and conducts electricity better. For many years, spark plug manufacturers have favored platinum for their long life and performance plugs due to its high melting point. However, increasingly strenuous engine conditions, and the creation of smaller electrodes and longer life plugs requires harder and stronger metals. The strength, hardness and high melting point of iridium makes it very well suited for a fine wire plug and for ultra long life spark plugs. Though better than platinum, it is very expensive, and at higher temperatures it oxidizes, thus rendering pure iridium as an expensively poor choice for spark plug construction. However, when properly blended with other precious metals such as Yttria, Rhodium or Platinum, you can enhance their advantages with the superior strength and hardness of Iridium. Almost all manufacturers have their own version of an iridium spark plug. Do not be fooled, iridium plugs were not created equal. Iridium content varies. Some of the lower priced iridium plugs have just enough iridium content so they can be marketed as iridium plugs. They likely will not perform or last as long as the plugs with a higher iridium content.
  2. Hello, My name is Alan, I live in West Palm Beach, I drive an '07 Avalanche LT 5.3 LMG, and I ride an '06 HD Road Glide. Glad to be here.

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