Skill Level: 2
Cost: $15 and up
Another important maintenance job to keep your vehicle running mean and green is to change your spark plugs regularly. What happens over time is the metal on the electrodes can wear away and become coated with carbon deposits. This will effect the ability of the plug to ignite the fuel/air mixture and therefore reduce your overall vehicles efficiency. In general most experts will tell you that most specialty plugs are not worth their price as far as fulfilling their promised power increase and/or fuel savings. There are a number of them out there, such as the E3 and Halo plug. If in doubt, just use the same plugs that originally came with the vehicle. Installation is as simple as removing the ignition wires from the old spark plugs, removing plugs with a socket wrench, installing new plugs, then coating the inside of the ignition wire boots with a little dielectric grease for a good seal before snapping them onto the new plugs.