Anybody running the new Paccar MX

try to think on this way

3rd part( parts from independent suppliers )is tradition in US , and your truck manufactures realized that they just assembled trucks from branded parts which they need to pay( more than produce their own) ....and they now try to force market to buy their own engines gearboxes and all stuff....back in 2004/5 i was wondered why would daf call its engine PACCAR than some time ago i realized because of US market , no one would by same engine with daf badge that´s it

now all of your manufacture will try to force you to buy their badged product they will lie to you that this is more quality than any other product low noise long service intervals , low fuel consumption....and that you can easily maintain that engine in their own service

sooner or later all 3rd part product will be branded as OEM or will be no longer offered

now take a look at this freightlinner has their own engine , western star also , kw and pete also , volvo and mack also , and internatonal also man engine under their badge , cat is already gone , you cant get anymore DD in other brands out od daimler-benz ......


i know that you guys love cummins fuller or parts like this and that most of them are better than products offered by truck manufactures.......

than i am sure that they will even lie to you that is almost same as cat just to force you to buy it

 

Under a confidentiality agreement with the testing customers the engines have been being tested on NA highways since 2004. at one point there were well over 200 trucks i nthe test fleet. all were with trucking companies in real world conditions. over 15 million miles were put on these engines.

 

if you look at the MX, CAT and Cummins you will see they are completly different. the MX was built from the ground up in house. some bolt on parts are from suppliers just as you will find with all other engine OEM's.

 

PACCAR is in no way lying about anything. Paccar is the Parent company of DAF. since the engine is to be sold all over the world, as are Peterbilt and Kenworth trucks, it makes sense for the engine to be labeled as a PACCAR engine.

 

Oh and one more for the record. the MX is now being built in the PACCAR Engine factory in Mississippi.

 

I wanna remind you that Paccar MX fuel system is really unique. At first galnce it it PLD engine with six cam driving PLD injection fuel pumps like on Mercrdes ore DAF UPEC, but it is from the first glance, really there are electronically controled PLD unit pums, but injector is electronically controlled like in CRD engine.

So injection is prceision like on common rail, but no HPFH, no common rail, proportional valves and other CRD stuff, PLD builds hihg pressure and when it is high enought for good injection injector nozzle is open with electric pulse at 500-2000 bar, like on CRD.

They call this technology SMART injection.

http://www.daf.com/SiteCollectionDocuments/Products/PACCAR-MX-engine-info-sheet.pdf

PLD injection pressure is about 280-360 BAR (depending if injector ajustment).

This engine was designed on base of DAF UPEC engine in cooperation of DAF and Delfi. Mechanically it is new engine.

 

injection pressures are in the 2000+ bar range.
the UPEC engine as you refer to it was called the XEC it was a completely different engine. some of the major differences are; it was a 12.6l, utilized 2 cylinder heads, and had dry cylinder liners. The MX is much different. The NA MX engine differs from the EU version in that it uses EGR and the "exhaust brake" is only used to help build heat to assist in the DPF regeneration process. Delphi helped develop the PMCI (ECU) and the fuel injection system. that is all.

 

Jeeze i hope they don't say they are the same as CAT! Have you heard of the warranty and failures the last CAT engines have seen here in NA??? resale of post 2007 cat engine powered trucks are in the toilet. You are correct, CAT has not been availble in Peterbilt and KW since 2007. They are also not availble in any NA OEM truck manufacturer's products except NAVISTAR. NAVISTAR has helped them build their own truck. have you seen that beauty? It is just an International with CAT badges all over it and a very, VERY BIG grill. Right now in NA EVERYONE is having what some would call issues with regards to the exhaust aftertreatment. it's new technoology and there are certian bugs to be worked out but the biggest thing is that it is new to the drivers. many issues could be avoided or minimizied if the driver would pay attention to the truck or if the drivers even got the correct training on system operation from the day they got in the seat.

 

This is desinged by DAF part of the PACCAR group witch also owns Peterbilt. And it runs great my father got 5 of them. It is euro 5 in the USA is that what i heard of it like epa 10.

 

EPA 2010 differs. It requires more precision fuel injection ore EGR, that's why EPA 2010 engines may have combination of EGR and SCR.