Can you beat it? DD15 1,165000 MILES

What a load of b.s.. With emissions crap that engine will die sooner. Forcing all that crap right into intake + restricting exhaust flow thus lowering mpg. No thanks

 

Yep greased only when they come in for the 75k oil change or whatever. Usually once a week both trucks get a few pumps. Cheap insurance. Almost 1.2m and besides a new steering box everything up front is still original and tight

 

Friend of mine has a 2006 Volvo 780 Cummins ISX 13 speed.
Just passed 2 million miles without a major overhaul, removing the head or touching the bearings.

Several EGR valves, couple of turbos, radiators, usual accessories. 3 clutches, 1 transmission. I power divider.

Bought it new, has run synthetic oil since new with bypass oil filter.

Called Cummins as asked if they wanted to promote it, or at least give him a sticker for the side
They didn't even return the call.

 

that's why it doesn't burn oil. a new engine worked hard, under load, so the piston rings can all seat evenly and completely, ensures minimal blow by later on because the new rings were seated against the walls under a lot of back pressure and all at once, so all the wear takes the perfect shape of the liner, as opposed to a mostly low rpm flat land light rattling break in, the rings basically just bouncing around not being pressed against with much back pressure, the wear will be half hazard and inconsistent, leaving room for extraneous movement later and more opportunity for blow by. with the 1 box system non combustible ash accumulation being primarily metallic particulate from oil additives, that translates directly to 1-box lifespan as well as engine health. there's only a short window to seat rings and it needs to be done under load, very early and very hard.

 

My dd15 just hit 600k today on my way home. Have owned it since it was brand new with 7 miles on it.

 

i drove 800k after overhaul that was done by Detroit and sold it... 1box was ####ed up .