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waltert · 12-07-2006, 11:13 PM

there are alot of diesel engines, as I understand it the ones that are converted SI engines are the ones to watch out for.

they have the same number of moving parts as gasoline engines, there are several factors that contribute to their long lifespan. diesel fuel is closer to an oil than gasoline, so it lubricates, where gasoline doesnt. also, diesel engines make their torque at much lower rpm than gasoline engines. this means less valve spring pressure is required to keep things under control....this reduces wear on all valvetrain components...the fact that its turning at a lower rpm also means that for a given number of hours of operation, the diesel will have completed less engine revolutions...again, less wear.

milage guesstimate...200k for a truck...obviously it depends how you're driving it.

12-07-2006, 11:13 PM	#4 (permalink)
waltert Insane	there are alot of diesel engines, as I understand it the ones that are converted SI engines are the ones to watch out for. they have the same number of moving parts as gasoline engines, there are several factors that contribute to their long lifespan. diesel fuel is closer to an oil than gasoline, so it lubricates, where gasoline doesnt. also, diesel engines make their torque at much lower rpm than gasoline engines. this means less valve spring pressure is required to keep things under control....this reduces wear on all valvetrain components...the fact that its turning at a lower rpm also means that for a given number of hours of operation, the diesel will have completed less engine revolutions...again, less wear. milage guesstimate...200k for a truck...obviously it depends how you're driving it. Last edited by waltert; 12-07-2006 at 11:16 PM..