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Review on AUTOOL Adjustable Diagnostic Automotive Protective by Todd Adams

Revainrating 5 out of 5

Good for visually inspecting spark plugs for proper operation

Works well when trying to determine if your spark plugs are sparking properly, especially after cleaning. I was also able to find a plug that was sticking to the porcelain (outside) and misfiring.

Pros
  • Tools and Equipment
Cons
  • Mostly Good, But...