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Common Sense + Critical Thinking
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So how long should iridium plugs last? I last did them in 2017 so am doing them now but my mechanic buddy says I couldve waited a bit.
How long do you guys run plugs/wires/dist cap/rotor?
They should last a bit longer than platinum plugs. It all depends on the condition of your engine, probably have a problem with contamination before you wear them out.
 
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