Why would anybody advertise the fact that their Diesel is Light Duty?

[hammersley]

I've been hearing about the light duty sticker mentioned on the Ford Engine. For us who haven't seen it - can somebody tell us exactly where to look - and as a homework assignment - can someone get us a picture? Also - the same for the Cummins medium duty. I want to show others this little fact. BTW - does the DMAX have a similar label? Question - :--)

 

[Pit Bull]

I guess I would like to know what this EPA rating really means and what it is based on? Is it a meaningless government rating or does it mean a Medium heavy duty diesel will last longer than a Light heavy duty diesel?

 

[B9Mile]

Its the Emissions Components

This was addressed in an issue of the TDR several years ago. Basically, the "heavy-dutiness" rating of an engine has to do with the expected longevity of the mandated emissions syetem components.



Page 3 of this pdf file has some life expectancy figures, way over in the "Useful Life" column.



http://www.epa.gov/otaq/cert/hd-cert/stds-eng.pdf