Quote:
Originally Posted by shawcross
yes all efi and carb engine use spark plugs accept diesels they use glow plugs
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Just to clarify, glow plugs are used just to get a diesel engine started. When running, the diesel uses the heat provided by very high compression, in place of a spark, to ignite the fuel.
Also, most larger industrial and commercial diesels do not have glow plugs at all. Glow plugs are most common on most (but not all) smaller displacement diesel engines.