Engine Oil

[cj hall]

JUST CHECKED MY ENGINE OIL

ITS BLACK AND IT LOOKS LIKE IT BEEN IN THERE FOR 10 000 MILES.

it was changed 600 miles ago the dealer says 05 are hard on oil , i think it a over fueling problem going to change the fuel filter tonight then it to the dealer in the am also the tail pipe is covered with soot (overfueling) and it smokes when you step in to hard. (overfueling) one would think. its a white truck and the soot on the back bumper and part of the rear truck box.

any one else had or are having this problem let me know.

cj hall

 

[KB0OU]

Pray for more smoke.

 

[puebla]

Same thing here. You might want to look into a bypass oil filter setup to remove the soot out of the oil. The soot in the oil is due to the 3rd injection event on the HPCR engines.

 

[JFaughn]

I was going to say that that is what diesels do is to turn oil black , but then I read further , I would not talk to them about oil but about the soot and have them look at the fuel system , sounds like its dumping fuel and it seems someone is always posting about fuel systems going bad scince the P-pump . I wounder if that may be a early symtom .

 

[ACerf]

I know what you mean about the Black Oil. However I had an oil sample done by Blackstone Labs when the truck had 47K on her. The oil sample came back with "Below Average Wear"! The notes in the sample said; What ever you are doing keep doing it. I change the oil on or about 5,000 miles and I am the dealers change the oil (because I have a paid oil changing plan). So I guess all that black doesn't mean much!

 

[RankRam]

All the 600-610 trucks turn the oil black, mine is black within 1 minute after I change the oil.



If you do a search titled "black oil" you will get plenty of information about this subject.



Oh and welcome to the TDR!

 

[klenger]

Don't worry, be happy.

 

[Gray 5.9]

my 03' dosen't start getting black til around 5000 miles, would that have to do with the change that they made to the newer ISBE 24 valves and more fuel injection events, vs. the earlier models with less fueling events, which would lead to less cylinder wash down and oil delution?

 

[jimnance]

JUST CHECKED MY ENGINE OIL

ITS BLACK AND IT LOOKS LIKE IT BEEN IN THERE FOR 10 000 MILES.

it was changed 600 miles ago the dealer says 05 are hard on oil , i think it a over fueling problem going to change the fuel filter tonight then it to the dealer in the am also the tail pipe is covered with soot (overfueling) and it smokes when you step in to hard. (overfueling) one would think. its a white truck and the soot on the back bumper and part of the rear truck box.

any one else had or are having this problem let me know.

cj hall

To meet Federal Nox emissions standards the engine manufacturers had to find a way to cool the combustion event somewhat. One way is cooled exhaust gas recirculation which really turns the oil black for obvious reasons. Cummins went another direction by adding a third injection event somewhat late in the cycle which cools the charge but creates more soot. They've also retarded the timing event which enhances the Nox reduction. Unfortunately, neither change is good for fuel economy and increase the amount of soot produced. The catalytic converter takes care of most of the soot coming out the exhaust, but some gets by the rings and loads the oil. This is one reasons for the new diesel oil specs, to better handle the increased soot load.



One way to overcome this problem is to use a Rokktech crank timing sensor which allows you to advance the timing and reducing the detrimental effects of the emmissions changes. It will result in higher Nox levels. Some of the timing boxes also advance the timing of the injection events. I don't think any eliminate the third event, but I think they fool the ECM into thinking it is injecting later than what it really is.



Level 1 on the Edge for example only affects timing and duration. It seems to improve economy somewhat if you keep your foot out of it. It is not a cheap solution, but they do have some neat features like the built in EGT guage and programable defueling when certain parameters are exceeded. I like the idea that it can protect against problems while having extra power on tap when you need it.



Anyway, with the advanced aditive packages in the new oils you shouldn't be concerned about the black oil. Just use a good quality oil of the proper specification and change it regularly. I change mine every 5,000 miles.

 

[WCPoe]

Black oil

cj - jimnance had a great explanation. My 600 engine also turns the oil black and I mean black on the first drive after the oil changes which I am doing every 5000 miles. I also believe the third injection event is the cause. My friends 2003 standard output motor keeps his oil looking new for a long time, but then he doesn't have that 3rd injection event. Those that have done the oil analysis on the 600 motors with black oil don't report any out of line parameters, so I feel the oil is doing its job. Just my . 02.

 

[EMD-Run8]

If I'm correct, it is just carbon and is actually too small in size to cause any wear. Besides, any diesel with plenty of miles turns the oil black right quick anyway. My old Rabbit diesel I had in school would start to turn oil black in about 1000 miles after every change. Run it and don't worry unless the oil smells like diesel fuel (this might also coincide with your oil level increasing).

 

[cj hall]

ok if it is the 3rd injection event can it be taken out of the program if the govt needs cleaner air let us burn a cleaner fuel bio,vegoil,beer what ever but lets not make the engine oil suffer clean oil is the best way of making the engine last longer. i think it wrong that in less then 600 miles the oil need to be changed how much dirty oil is going to be dumped so we can reduce the nox in the air !!!! can some one help

 

[MMeier]

Its a Cummins, nothing is going to happen to it running "black" oil in it!! I run the "A" stuff 22-24k miles with nothing but a filter change and a topping off at 11-12k. First 2 samples came back "no corrective action needed" Have a sample I took at 87k to drop off, now have 97k on the beast! And it gets worked !!

 

[CumminsBu]

Oil turns black in all Diesel engine it's something that diesels do.

 

[Grizzly]

The dealer told me it was normal on the 600/610 Cummins.

 

[KB0OU]

What a bunch of crapp to fill the TDR web sight with black oil!!!!!!!!!!!!!