NGK Ruthenium HX spark plugs are a must - have for today's modern vehicles. With patented Ruthenium technology, they offer advanced tip design, delivering top - notch performance and a long lifespan. These high - ignitability plugs are crafted from advanced OE technology and feature patented OEM DFE and PSPE tip designs. They ensure a more complete fuel burn, leading to quicker throttle response, smoother idle, and better cold starts. The ruthenium center electrode provides industry - leading durability. This pack of 4 plugs fits a wide range of vehicles, including various models of Audi, Bentley, BMW, Chevrolet, and many more.

Using these NGK Ruthenium HX spark plugs is easy. First, make sure your vehicle's engine is cool. Remove the old spark plugs one by one using a proper spark plug socket. Then, carefully install the new NGK Ruthenium HX spark plugs, but don't overtighten them. Just hand - tighten them first and then use the socket to give a small extra turn. When it comes to maintenance, it's a good idea to check the spark plugs regularly, about every 30,000 miles or as recommended in your vehicle's manual. If you notice any signs of wear, like a worn - out tip or damage to the electrode, it's time to replace them. Also, always keep these spark plugs in a dry place to prevent corrosion. That's all you need to know to get the most out of your NGK Ruthenium HX spark plugs!