Comments by "" (@naps3386) on "How to maintain your Toyota Part 3 Brakes and Spark plugs" video.

  1. Spark plugs may look fine when they are removed at whatever point, what matters is their resistance. Internally their resistance increases over time and puts higher load on the coils. The worst thing for high energy discharge devices like ignition coils is high resistance over time. May I suggest when you have a vehicle with known high miles on the plugs to check resistance compared to new, you may see what I am describing.
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  2. Engineering Explained just did a video on brake pads, many oem manufacturers specify mechanically locked material vs glued . There are many ways to bond the material to the backplate, so just because they are top brands like Brembo, does not mean they meet oem specifications.
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