Originally Posted by DoubleWasp
Cylinder washing wear from regens?
This is what I think
Originally Posted by 2015_PSD
Originally Posted by mattd
Once a month, or every 2000 miles. Right in line with the OLM. They won't pay for a UOA. I'm sure the fuel dilution is high.
Therein lies the problem. If these trucks are sitting idling and the like or stuck in stop and go traffic, the viscosity of the oil is likely reduced to the point of the engine "drinking it" which is what seems to be happening. I had about 50K miles on PSD when I sold it, but if memory serves, I had about 900-1000 hours on it (mostly highway miles). Modern diesels with full emissions systems are not designed to sit and idle and without the regen completing (and it sounds like it is not) then fuel dilution is over the top. They seriously need to spend $25 and find out what is happening with the oil unless they have money to burn and simply do not care.
It will burn oil on a fresh change. The oil doesn't smell heavy of diesel when it's changed, but it has to be on the high side. I've been working on powerstrokes for the past 15 years and this latest emission equipped powerstrokes are very hard on it. These trucks are rescues in a busy city. The OLM accounts for all the regens and pops up every month like clock work. I have the trucks in every 2 weeks for fluid top offs and complete inspections. And they are pulled out of service for maintenance every month.
Just perspective, one of our reserve trucks that used to be front line has 230k miles with 34,000 hours. It's has has 2 engine overhauls (6.4). On average, they put 4000 hours per year on the trucks.