Show us some odd ignitions from the past
I purchased one of those for a (of all things LMAO) a
Hyundai Excellent. It boosted mileage pretty good. The best was 42 mpg’s. But once a year it became a MUST to change the cap and rotor because the amount of energy that was discharged would turn the inside of the cap into ash.
I still ha s it but not used it in years.