[Lion Den Dan]

I don’t understand why the automakers are not introducing the high torque, low displacement turbo charged diesels in trucks by now...The large trucks by now could be getting 28-32 mpg if they were to put these in...

When you put a 3500 pound payload and chains on all 4 cornere of a 1 Ton, 4x4 truck then start driving through 10-12 inches or more snow on rough, hilly terrain, it takes horsepower AND displacement to pull the load. If those kind of engines worked in trucks, highway transport trucks would be using them.

[BwanaNdege]

I’ve seen old Bedford (British) lorries hauling several ton loads up a 5+ mile grade in Kenya, climbing from 6000’ elevation to 9100’ elevation. Not very fast, but no turbo either.

Currently Subaru sells its 2.0-liter 4-cylinder boxer diesel in Europe where it makes 145-hp and 258 ft-lbs of torque and gets around 34/41 mpg (city/highway) in vehicles like he Forester 2.0D

[cableguymn]

An f150 raptor has more horse power than most otr trucks. HP is something boys like to compare. Men know its torque that gets the job done.

[ROCKLOBSTER]

>>I don’t understand why the automakers are not introducing the high torque, low displacement turbo charged diesels in trucks by now...The large trucks by now could be getting 28-32 mpg if they were to put these in...<<

If those kind of engines worked in trucks, highway transport trucks would be using them.

What do you think the Cummins 5.9L is? Semi's do use turbo diesels. The 6BT has a little brother called the 4BT. A turbo diesel gets better fuel mileage than a NA diesel.