Review on Denso 6010 Spark Plug by William Zoberman

As a result of using this product, I found that it did not live up to its advertised promises. My Automotive vehicle's engine saw no improvement in ignition performance and even caused some misfires. The only positive is that the price is relatively low compared to other options. However, the UNRELIABLE performance negates any benefit of the lower cost .i would not recommend this product to anyone looking for a reliable ignition solution..