Comments by "John Cooper" (@johncooper4637) on "Never seen them this bad! 1/4 Million Mile Spark Plugs! #tuneup" video.

  1. They looked like the gap was 3x the correct gap.
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  2. That has to be the cleanest engine compartment I've seen on a car with that kind of mileage. Two of the coils were a different color were they newer?
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