Testing spark plug: copper vs ruthenium. I like how precise and focused the ruthenium spark plug spark is. Definitely a function of the pointy center electrode.
Get the Autool spark plug tester SPT101 (Be sure to select the appropriate voltage version (110 vs 220v):
1. From Amazon - [ Ссылка ]
2. Aliexpress - [ Ссылка ]
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#sparkplug #ruthenium #Autool #DIYAutoworksNG
