Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. This spark plug tester features an innovative dual-socket design, ...
The 24”-60” plugs are the largest in the I-Series line, featuring the safety and durability of innovative robotic technology Cherne’s I-Series Test Plugs provide improved performance and safety ...
Iridium spark plugs are more expensive, last far longer, and handle heat better than copper spark plugs -- but not all ...
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