2% was the generally accepted soot limit back in the CG-4 days. Semis and other trucks/engine combinations are engineered differently than cars.
The new pick up truck diesels take about 2-1/2 gallons. The older ones were closer to 3 gallons. My Cummins B5.9's were designed to run 300,000 miles and everything that could be made out of metal was. No plastic clips. Timing gears. A starter was was probably 30 HP for an engine that weighed about 900 pounds with the flywheel. Semi OTR engines take somewhere around 10 gallons of oil and may get 100,000 miles a year. They may have dual batteries for 24V starters. It takes quite a bit to spin over a 12-18L diesel engine. The exact size of the engine and load depends on what the truck is hauling and where. The needs for driving in NYC, across I-80, or the Eastern Kentucky coal mines can vary. On Sun, Dec 23, 2012 at 7:07 AM, OK Don <okd...@gmail.com> wrote: > Exactly - each driver/engine is going to be different - you have to analyze > the oil to see what will work for you. There are no blanket rules. > > On Sun, Dec 23, 2012 at 7:12 AM, Mitch Haley <m...@voyager.net> wrote: > > > Mitch Haley wrote: > > > > Seems like Marshall quoted a maximum soot level provided by MBZ or Mobil > >> Oil, and then said he liked to change at a lower level. Maybe Larry > Turner > >> remembers the details? > >> > > > > In other words, I think the advise was not to extend without testing to > > know how fast your particular engine built up soot in the oil, and if you > > tested, to change at the mileage where your oil soot level hit x%. > > (1.5%? 2%? I don't remember any more) > > > > Mitch > > > > > > ______________________________**_________ > > http://www.okiebenz.com > > For new and used parts go to www.okiebenz.com > > To search list archives http://www.okiebenz.com/**archive/< > http://www.okiebenz.com/archive/> > > > > To Unsubscribe or change delivery options go to: > > http://mail.okiebenz.com/**mailman/listinfo/mercedes_**okiebenz.com< > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com> > > > > > > -- > OK Don > 2001 ML320 > 2012 Passat TDI DSG > 1997 Plymouth Grand Voyager > 1957 C182A > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
