What is the difference between a four-electrode spark plug and a single-electrode spark plug?
1 Answers
Specific differences between a four-electrode spark plug and a single-electrode spark plug: 1. Reliability: The four-electrode spark plug is more reliable than the single-electrode spark plug. If one electrode is damaged, the others can continue to function. 2. Advantages: The single-electrode spark plug has the advantage of minimal obstruction during gas combustion transmission, resulting in faster combustion speed and stable spark ignition. On the other hand, the four-electrode spark plug and multi-electrode spark plugs have the advantage of multiple negative electrodes. If one negative electrode erodes, the spark can jump to another electrode, extending the service life. This design maintains the ignition gap for a longer time, switching to another gap when one becomes too large. Spark plug replacement cycle Under normal maintenance conditions, replacement is recommended every 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine, so it's advisable to follow the user manual. The following standards can be used as a reference for maintenance replacement: Platinum spark plugs should be replaced at 40,000 kilometers, ordinary nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers.