2006 Detroit S60 515hp?

The first year with the EGR, 2004 and 2005 model years had trouble with cracked heads after a few hundred thousand miles, diesel in the coolant, EGR cooler trouble, etc. Once they worked the bugs out, they were okay. But, fuel mileage on these years isn't that good. For some reason, people have better luck with the 2006-2007 EPA 2004 engines.

Compared to the CAT and Cummins, they got better fuel mileage. The real money is in the pre-egr 2003 and older Series 60's. Good power, superior fuel economy and trouble free. The Series 60 is an excellent engine, although after 2004 I'd say not as good but still a decent motor.

 

Ivnvchuck very interested on hearing your experiences with a Detroit.

 

"Yeh my buddy had one and he said it sucked. So yeh, they suck."

 

I've got one in a 2006 Columbia pushing a million miles right now. I've been struggling to get the fuel mileage to average over 5.5mpg (lifetime ecm reading), and I think I've got it over 5.6mpg now having replaced the water pump, radiator, and charge air cooler in the last month. Egr and turbo should blow up any minute now. Pulls great up hills, but it's one of the slowest trucks off the line I've ever driven because the automatic transmission can't make its mind up about what it wants to do.

 

5.5 mpg, dang, I thought mine was bad. I use to get 6.2, but now I'm at 5.8-5.9 .

 

Alex, I put 800K+ miles on one of them in a carhauler. Fuel mileage sucked, but other than that it wasn't bad. A bit low on torque compared to the Cat & Cummins, but it'll run like a big truck if you keep the rpm's up (and burn the extra fuel!) Only put 1 EGR valve in it, and the water pump. Other than the bellhousing gasket ($$$) I did no other repairs to the engine. Ran the overhead once in a while, and down the road we went. Lifetime MPG in the upper 4's running fat most of the time, and the other 3 in the fleet do about the same. (All you non-carhaulers can put down the defibrillators; duty cycle on a carhauler is rather high, plus idle time for PTO, just kills mileage.)

 

i was a cat guy till i got this 14 liter had alittle ecm work pulls as good as my 600 cat did fuel milage is around 6.5 2004 515 talk to rebel127

 

My s60 will get great mileage just lacks low rpm grunt like a cat. I'm sending the ECM to get a tune to try it out an see how that plays out. Mines a 99 ddec 4 an I have gotten up to 8.25 mpg(4.54litres I'm using as a gallon). If this tune don't work out ill have to see what rebel has to offer.

 

Mine was in an '07 WS. We have 4 '13 models with 485 ISX in them, and they have much better than the '09 & '10 models as far as reliability. They get low 5's on fuel mileage, they are incredibly quiet, and the power is more than satisfactory. I don't have any experience with the Paccar. PabloUA would be the one to hit up on that, as it's a rebadged European engine, just tuned for US emissions.