I have an 03 dually with the 5.9 Cummins and 6 spd manual. There is some blowby, not bad but enough to notice it when the truck is idling and you look under the front. I found some seals and an open ended ring in the dash pocket when I bought he truck, I wonder if the turbocharger seals were changed and not put back right, and if that is causing my blowby. (See the bottom cause in the chart)

 

Anybody have any thoughts on this ?

 

You should check the blowby by using the oil cap method.

I wonder if this  stuff is  comparable to  'Restore'.    I  think  that  stuff  has  powdered  graphite   that  jams  up  under  everything...   but   Restore  washes  out  during   oil change.. 

This  'gel'   probably acts  more like  MUD..       mopartech    hit the nail  with the  oiling  cooling jets.    I wonder how long  it'll be  before the  turbo no longer turns.

 

It's  probably a  fantastic  product  to  dump in a  vehicle  for  a  quick sale...   and   possibly   a  few  thousand  'free' miles....   or  may be  the  next-best thing  to  sliced bread!

The two blowby common rail engine I have worked on have both had broken rings.  

The two blowby common rail engine I have worked on have both had broken rings.  

But what broke the rings?

Truck had about 1700 miles since adding the Gel when I sold it. I told the new owner everything, and even pulled up this thread and let him read it. I asked him to keep in touch and let me know how it worked out, but that's been a few weeks ago and I haven't heard from him since he drove away, so I doubt he will follow through.

 

Is Cer-Tech Gel snake oil ? Your guess is as good as mine. All I know is that it worked on this particular truck, or at least it appears to have worked. There was no smell or visible smoke from blowby on the day I sold the truck. If you laid the oil cap on the engine with it running, it would still cause it to rattle and jump a little, but it wouldn;t blow it off the top of the motor anymore.

 

I wouldn't recommend using it just for the quick sell of a truck, That's bad business and can bring all kinds of bad Ju-Ju, and if you do sell, make sure to tell the buyer. In fact, I wouldnt' recommend using it at all unless you are fully prepared to shell out the cash for a complete rebuild, in that case you'll have nothing to loose other than the money you spend on the Gel. If you do use it, by all means let folks know how it works out.

 

All that having been said, I hope this thead was helpful. Thanks to all that commented.