DD13 or DD15

I remember hearing that DD13’s were not designed for heavy loads, say, 80k gross. I think those engines are also smaller and local trucks tend to use those engines. However, I am just going by what I heard. Maybe someone can clear this.

 

Its a 13L what do mean it isn't capable. 505/1850 ain't enough for 80k and under? Most fleet DD15 are 455/1550.

 

I found this in Detroit’s website.

Detroit DD13 Engine | Demand Detroit

From the pictures you can see the DD13 engine is smaller than the DD15. This explains why some Freightliner Cascadias have smaller hoods.

 

Dd13 means 13 liters I still run a 12.7 liter 470 hp all i need 13 liter capable of 505 hp good to go ,as far as the truck 177000 fewer miles no brainer buy the 13 liter with 280000 for 3000 dollars more ,

 

I have never seen dd13 that has 505hp...

 

The dd15 gets better fuel mileage

 

Dd13 will get at least 1mpg better but not as much power obviously,we ran the dd13,never under 6mpg usually better in a flat nose western star hauling 100k gross,then bought dd15 same model trucksame trailer and loads and wouldn't hit over 5.4.....but night n day difference in power

 

And that 2000 mile warranty seals the deal.

 

My last company had a loaner from Penske with a D13/505 10 speed. It was an older truck