after reading some of these threads i think i understand why my stocker had a high reading on the oil stick. my 3500hd 6.7 may be taking on fuel through the egr. this can't be good for the engine. delete the egr ?

 

you could have a leaking injector. not sure if 6.7 is like other diesels, but could have a leaking return line under valve cover, seen duramaxes with that problem.
its not too hard on engine, just get oil changed often, until injector is fixed or what ever is the problem

 

How do you spell relief????


D-E-L-E-T-E


EGR system is know to cause excessive fuel in the oil.

Get you a programmer, preferably a Smarty, and delete everything, youll thank me later.

 

Surgical intervention of all the emissions components will not only eliminate the growth of oil in the crank, it will also lower your consumption of a non renewable resource...fuel. The trucks that have undergone the smogectomy are all running cleaner internally and eating less fuel. When I first had the procedure done to MEGA mega I was really concerned with what I would see out the tail pipe and what kind of issues that would attract. I can tell you that I am very pleased with the results inside the engine, inside my wallet and outside the truck at the tail pipe.

Scotty

 

Another good reason to not have the newer engines!

 

There is nothing wrong with the 6.7's. Its the EPA crap that kills em. If Cummins had their way it wouldnt have any problems.

There is solutions to making them great engines.


The 6.7 bashing by non 6.7 owners is getting a little old.

 

not possible for the engine to make fuel thru the EGR. most causes of making oil is leaking injector or return line or the crossover tubes not seated.

 

Not doubting your knowledge, but how come there are guys that, after the deletes, have no more issues with making oil???

 

Technology brings some growing pains that some of us are willing to overcome.
Others will choose to bash instead.
Of all the trucks I have owned [this one is number 26] only 2 did not go over the 200K mile mark. Those where my 2004 and 2007 5.9 CR trucks.
Each one had inherent issue like dissimilar metals in the valve guides and several injector issues. Even Cummins admits there was a rash of issues with the guides but did nothing about it. Same with the injectors.
This truck however has proven to be the best of them all...highest HP from the factory and smoothest cleanest running because I chose to make it work for me.

My truck never did add fuel to the crank but I know of a couple here in town that did.

 

My truck was making oil. Plain and simple. By the time I changed oil, it was about 1/2 an inch higher on the dipstick. When I unplugged the EGR, it slowed things down, but it still did it. Once the deletes were done. No more making oil and it stays clean for quite awhile after its changed.


Yes, the 6.7 bashing is getting old. Once things are cleaned up on the motor, it is an amazing technological achievement. To have that much stock HP and torque at that low of an rpm, be able to run that quietly and give me 16 mpg (in town only) with the a/c blasting away and driving spiritedly, is pretty darn good in my book.

 

I don't know 100% but there is no fuel even going thru any of the EGR system to create oil. I have done many delets on them.

is it an issue when going into regen and the ECM initiating the added injection cycle for regen and getting past the rings? and when deletes are done, no regen so no fuel past rings?

 

I think the elimination of the 4th injection event may have something to do with it....

 

BINGO!

 

I think we have a winner!

 

I've had them all, been there done that. Even if Africa, it doesn't mean we don't see that garbage here. The guy next to me in the campground had one - currently in the process of removing his engine for a 5.9L he and I found in a wrecking yard. I prefer simplicity - KISS. They had a great engine - if it ain't broke - don't fix it!

The EPA rules were made for BIG trucks, not class 1-3's. They went a little nutzo with their rules, while old gassers out there are still puking fumes that would kill a small child standing behind one. If they were so concerned about our health they would have mandated smog-pollution testing all over the country, not just in a few cities. They didn't and they aren't!

The EPA can't advise or control an oil leak in the GOM, so what makes you think they have expert knowledge about anything else?