You know what kills me about new model vehicles, is aren't the engineers and designers supposed to run these vehicles litterealy into dust, for durability factors. And wouldn't that mean pulling out and installing spark plugs? Why did they run 3 valve motors for 4 years, and then say, oops we've got another sparkplug problem. It's not threads this time, but fellas you're not going to believe what our dealerships are saying! Just once it would be nice to build a motor or transmission, find it's weak link, fix it before it hits production. Gm did just that with the first Automatic transmission for them, the hydramatic. They introduced it in 1939 for the Oldsmobile. Used that model for a testbed, tweaked it, then offered it in 41 for the Cadillac lineup. The transmission proved so strong that they used them in tanks in WW2, and other competition bought them, Lincoln, Hudson, and others. Why can't that kind of logic be applied today? Can anyone explain why you need a two piece sparkplug? When obviously the newer one piece is just fine.
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