My understanding of the previous comments is that "active regeneration" utilizes a 4th injection vent that shoots fuel during the exhaust stroke and "passive regeneration" is just running your pickup hot enough to burn the filter contents without adding fuel. I would've thought that active regen would've meant sending some fuel directly to the canister??? I also have this oil dilution problem and it doesn't make me a happy camper. (i guess deletes are gonna come even sooner....just waiting for smarty to come out for 2010's)

 

Well yes, the 4th injection event technically sends fuel directly to the canister. The fuel is still raw when its exhausted by the exhaust stoke. Saves from having to have a separate fuel system that injects directly into the canister.

 

I just put on 1000 miles on my 2010 truck this week and my oil is still pretty clean. Just dump the egr/dpf and lose the 4th injection event. Even in stock mode, without the egr/dpf I bet the truck is up 15-20rwhp, still running the stock exhaust. Can't wait for the smarty to come out, it might make more power than the H&S and I can stack it with an edge box.