Diesel Vs Gas Engine Life Expectancy at Life

Diesel Vs Gas Engine Life Expectancy. Another big differentiator between gas and diesel engines is overall life expectancy. Under optimal conditions and assuming the quality of the diesel fuel is high, you can expect it to last for up to one year or more.

Roughly speaking, you can expect a diesel engine to last twice as long as a gasoline engine. As such, diesel generators may not wear out as soon. Being less flammable than other types of fuels, diesel generators score high on being safer to use.

Diesel vs. Gas Engine Life Expectancy, Emissions

There's very little difference in the life expectancy of a light diesel engine (like those used in vans, pickup trucks, etc.) and a modern gasoline engine. Now, if you're talking about the large, heavy duty diesels like those used in large diesel pushers, that's another story. Isuzu has been steadily increasing the dependability of their diesels from their previous rating of 310,000 miles. (ref the globe and mail) while diesel engines typically last longer they are more costly to repair.