These days, the offerings for spark-ignited (SI) engines are greater than ever when it comes to a necessary diet of hydrocarbons to keep them well-fed and operating properly each day. Whether a liquid diet (gasoline and interesting new variations) or of a gaseous nature, there are choices these days that offer operational and service advantages — as well as regulatory relief, as some options tend to burn cleaner.
With gaseous fuels providing ever increasing opportunities, it’s time to see just what they bring to the table. We’ll start at the beginning and work our way along and see just what selections are available.