Here I am

SOOT in oil!

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crankshaft

rail pressure

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What TQ management were you running before?



I have seen the biggest difference in soot loading from timing on the Smarty Jr. TM4 makes soot like mad.



hhmmm... I'm really wanting to install a Smarty Jr on my 06, but after reading this thread... i'm not so sure now!..... :confused:
 
I believe that the Smarty is the cause and, based on comments here and my experience, the timing is the culprit. After I get a few tank fulls with the regular Smarty timing and my lightbar (for mileage comparison), I'll try the level 3 timing. If the mileage doesn't drop much and it is still reponsive I'll just run timing 3 and see what the next UOA looks like.
 
I tow heavy and a few out of town trips and have extensively changed settings from 120hp to 30hp and the 60 with timing is by far the best for mileage. The 90 hp with timing seemed to hold the mileage up there empty but EGTs can get out of control while towing.
 
Amsoilman, My oil analysis comes back w/ high copper too. Twice. Same explanation as your's " Copper is most likely leaching into the oil via the oil cooler core tubing" How can this be? The tubing is breaking down from the inside???



Here is an article from Caterpillar concerning Copper in Engine oils. This pretty well explains why it happens... ... ... ... ..... especially in oils that have high quantities of ZINC.



"Per Caterpillar, high levels of copper found in oil analysis are a result of engine cooler core” leaching". The Zinc additive in Diesel Motor oil reacts with the copper cooler core tubes at high oil temperatures. This chemical reaction results in copper oxidation products forming on the surface of the tubes and then coming off into the oil as it washes over and around the tubes. Heat is a catalyst to this chemical reaction. The higher the oil temperature the greater the rate of oxidation and the longer the reaction process is sustained. This does not cause any damage to the cooler core, or to the engine. However, you will see the copper reading elevate to over 100 PPM. Copper is not a particulate in this case but is in solution in the oil. The PPM will start relatively low and increase over 100 PPM and stay at high levels for several intervals, and then return to normal. During the oxidation process, a hard film forms on the tube surfaces exhibiting the appearance of clear varnish. Changes in operating temperatures, and/or changing oil brands can chemically disrupt this film and begin the oxidative leaching processes again. This can occur in any system with a cooler core: Gasoline or Diesel engines transmissions or hydraulic systems. "
 
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