There is a number of varied spark plugs available at the market; for diverse vehicles and, more importantly, to satisfy the different needs of a vehicle operator. You can choose among platinum, iridium or conventional spark plugs. The iridium and platinum spark plugs tend to be costly but provide an electrical power and a mix of air and fuel that works ideally in the engine.
Depending on the conditions of the vehicle, its age and cargo capacity as well as road characteristics and environment, it is necessary to determine whether you need iridium, platinum or conventional spark plugs.