Understanding multiple ground electrode spark plugs and the benefits of iridium spark plug technology

摘要

One of the most misunderstood spark plugs in the automotive industry is the Multiple Ground Electrode Spark Plug. It has been used as Original Equipment (OE) in rotary engines by Mazda since 1971 and has since been adopted by many other automotive manufacturers (European and Japanese). Some Original Equipment Supplier (OES) manufacturers still offer them to feed the mentality that OE is the best replacement.