12 Advantages of a Diesel Engine

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10. Diesel Engines Run Cooler

Diesel engines always run cooler than their gasoline counterparts. Since the engines are more efficient, there is less waste heat created during the engine operation. Since a diesel uses approximately 40% less fuel to produce the same power output as a gasoline engine of the equivalent size, there is less overall heat generated during the combustion process. One of the primary reasons for the better efficiency (and less overall heat generation) is the extremely high compression rations used by diesel engines to create power. The fuel is not injected in a diesel engine until the piston is at the top of the compression stroke, so the engine is only compressing air. A gasoline engine; however, has its compression ratio limited by the gasoline’s ability to pre-ignite. There are new technologies being developed for gas engines to minimize this effect for future car engines.