2013 T660 with a Paccar

Isx is a cummins engine mx13 is the Paccar product .. 450 hp sounds like the cummins rating paccar is typically 435/455/485/500 from what I've seen

 

I own a 2013 KW T660 Studio, I have the Paccar MX13 engine with no restrictions and HP set to 485, 13 speed, 3.36 gearing, with currently 402,315 mi on it. I also have the Thermo King apu.

My experience with the engine has been very good, I do 30,000 mi oil changes, can go to 40,000 OCI
according to mfg. Engine does not use any oil,coolant ect. I do all my own maintenance on trk except the DPF filter cleaning. Everything is pretty easy to maintain on the engine. It was recommended to me by the dealer to pull egr cooler every time I service the emission system. Reason being is to clean the soot and accumulated carbon out of the passages which create hot spots and burn thru, along with Def filter, and cleaning dosing injector, and other sensors. I do my DPF filter service every 160,000 mi, same time I do my valve train adjustment, it takes me one full day at home to do all this, including pulling and reinstalling DPF filter. I am pro active on maintenance. I don't wait until things break. Idling is very hard on the emission system. I have a lifetime idle average of 4%, lifetime fuel mi avg is 6.5 mpg. I do admit I have a heavy right foot I cruise at 73 mph most times I stay out west where very little traffic. Overall impression with the Paccar motor from a former die hard yellow motor lover is, it doesn't have the down low torque, it does well between 14 to 1700 in a hard pull, power is good. would I buy another yes!. BTW it hasn't broke down and left me stranded yet.

 

I've been told a lot of companies trade in every three years. Personally, I wouldn't get a fleet truck cause I just wonder how maintenance is with trucks like that. Maybe that's paranoia or something but I just think with how some companies are, they'd sacrifice to save money. Especially if they are on a trade in plan every few years. Maybe I'm way off but......

 

My brother has a former Melton truck. T600, O7 with a CAT. Has twin turbos on it. The truck itself is in decent condition but the engine burns oil. Plus about every 7-8,000 miles oil pressure drops bad and returns once new oil and filter are installed. KW said it was bad bearings on crank. They changed them. Didn't make sense to me. It made no difference. Now they are saying it has not been using the CAT filters. Of course, I forget now what they exact description of the filters are but he started using them. No difference. KW said it will take a while because there's probably a lot of sludge built up in engine due to poor maintenance and improper filters while it was a Melton truck.

Whether or not this is all true, only time will tell. I mentioned if there's a build up of sludge in engine from poor maintenance, then why not flush the engine out. Heck, drain oil and run diesel fuel through it for a minute. Guess that would be frowned on.

Of course, I have no idea how accurate the KW shop is about the oil pressure issues etc..... If so, though, it just supports my paranoia about "fleet trucks".

 

You would think but I've really lost tons of respect the past few years for KW dealers/shops. Guess it not much difference than auto/car dealerships. It's all about the money/profit to them.