Originally posted by rajubhai55 Is your Freightliner Columbia with US designed CAT/Cummins/Series 60 engine or Mercedes engine? Current frientliner trucks are more popular with Mercedes DD series engine designed in Europe.
Currently in "On-highway trucks" only US designed engine is Cummins, rest all the truck manufacturer uses European designs/ or modified European engines. Volvo trucks (Volvo engines), Freightliner Trucks (Mercedes engine), Paccar trucks (DAF engine), Navistar (MAN engine)
US is now more of a follower than leader in Automotive world.
The 'Shaker has a Detroit Series 60 engine in it.
Caterpillar ceased building on road engines in 2007 because they cannot meet the latest federal emissions spec.
The Mercedes engine is not a good choice in a heavy truck, it is too small and does not provide enough horsepower/torque.
Most class 8 trucks are available with whatever engine the customer wants, i.e. a Cummins ISX can be had in a Freightliner, Volvo, International, Peterbilt or a Kenworth.
But each make has their own engine which they try to sell to their customers. As you point out, the PACCAR trucks (Peterbilt and Kenworth) can be had with the new MX engine, developed from the DAF engine in Europe, but now built in Mississippi (PACCAR actually bought DAF so they could have the engine to develop into the MX). Freightliner has the Detroit engine. International has the MaxxForce.
And Volvo has their lineup of boat anchors, the D12, D13 and D16. I had the unfortunate "privilege" to run a Volvo 780 with the D12 last year. By far the worst rig I have ever driven. Volvo trucks are really well laid out from a driver comfort point of view, large, roomy sleeper, the lower bunk on the 780 can be made out into a table and bench seats, refrigerator/freezer, etc.
But that D12 was a gutless pile of, well this is a family forum, so I'll let you fill in the blank. Even empty the thing had a tough time rolling down the road. Put 40,000lbs on the deck and going over even small hills required many downshifts, and Eisenhower in Colorado had the thing down to 20mph. I was happy to move on to the Junkliner with the Detroit.
But I still long for the first Volvo I drove. It had a Cummins ISX, 550hp engine in it. I never wanted for power pulling heavy loads in the Rocky Mountains.