NGK Ruthenium HX spark plugs are top - notch for today's modern cars. Their patented ruthenium technology offers advanced tip design, delivering high performance and long life. These high - ignitability plugs, created with advanced OE technology, come with 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 set of 4 spark plugs fits a wide range of vehicles including Acura RSX (2002 - 2006 Type - S), various Audi models from 2002 - 2018, Buick Encore from 2013 - 2020, Chevrolet models like Cruze, Sonic, and Trax from 2011 - 2020, Honda Civic and S2000 from 1998 - 2011, Porsche Cayenne from 2003 - 2006, and many Volkswagen models from 2006 - 2018.

Using these NGK Ruthenium HX spark plugs is easy. First, make sure your vehicle is turned off and cooled down. Remove the old spark plugs carefully using a spark plug socket. Then, install the new NGK spark plugs by hand - tightening them first, and then use the socket to give them a final, gentle tighten. Don't over - tighten as it can damage the engine. As for maintenance, there's not much you need to do. Just check them regularly, say once every few months or as recommended in your vehicle's manual. If you notice any signs of wear or if your vehicle starts having ignition problems, it might be time to replace them. Keep them in a dry place when not in use to avoid corrosion. And always follow your vehicle manufacturer's instructions for the best results.