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Spark Plug Shelf Life?

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Old May 20, 2020 | 08:15 AM
  #11  
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squirrelsnest
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Old ones are OK just check the spark plug gap before install.
 
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Old May 20, 2020 | 09:30 AM
  #12  
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Unless the electrode has completely rusted through (which would be plainly visible), you are good to go.
Dual plug heads...gap them at .040".
 
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Old May 20, 2020 | 09:49 AM
  #13  
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Since they last 10,000 miles in the engine , there`s a slight chance they can withstand the hostile environment of sitting on a shelf....
 
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