I believe for most of Canada their emissions enforcement are more lax than ours. A fair bit of tuners operate out of there.

In all honesty, probably not. The OEM fuel filter set up on 6.7s, especially the 2017+ trucks are pretty good. You already have a 10 micron primary and 5 micron secondary filter. That said, I swapped mine out for a pair of spin ons.




Mostly personal preference, been on there for over 15k miles. No issue even cold starting below zero this past winter unassisted.

 

If you have a Texas license plate, you're almost guaranteed to be pulled to the side and have a complete interrogation performed on your vehicle and luggage looking for guns. The Canadian border patrol assumes all Texans are carrying guns into their country.

 

Every damn time I cross, the CBP asks me where my firearms are. I tell them they are home in a safe location. I guess my plates are tagged. Although when I did live in Canada, I had a PAL. So that might be flagged as well.

 

Man you ain't lyin'

 

Maybe that won't be an issue one day in the future....

but yeah until then...

 

Talk about a culture shock...

 

Hahaha... I'll say this on it... just like there are more conservative thinkers here in my state than most think, and I'll speak to my area, I'm sure there's some in Canada as well...

There's more to add but I'll keep it there for the obvious reason...

 

Looks like Ram/cummins still don't have their emissions system dialed in based on this 7 month owner review.

 

[QUOTE=FishOnOne;21823859]Looks like Ram/cummins still don't have their emissions system dialed in based on this 7 month owner review.
/QUOTE]

Holy bla, bla ,bla. They need to severely edit.

 

Meant to comment on this before... that's what I have always seen when looking into this online. I know you have owned at least one Ram diesel Troy but not sure about a GM...

Just like in life, there are exceptions to every rule but as long as the truck is being used in a way to get the engine and emissions hot, and complete active regens, our trucks perform well when stock.

 

I went DCR at 63K miles and did the cold side intake tube then too. Have 92K on mine now and never an issue. Towing most of the time or hauling heavy pallets of pavers in the bed. Usually somewhere around 30K gross so just enough to burn some fuel at a high rate.

Just go DCR and move on.

 

a few of the problems with the for 6.7 fuel system


17 thru 19 and maybe on up, the in tank filter has a bug that allows return fuel from the injectors and cp4 to go back to the fuel stream with out going thru the in tank filter.....this is a disaster that diminishes our percention that return fuel gets filtered....ford is trying to potch this a s a feature for cold weather operation.

17 thru 19 and maybe on up, the junction point at the fuel rail and the bay filter return line can allow return fuel from cp4 or injectors to go back to the injectors takng any metal flakes with them....again ford is trying to pitch this as a cold weather feature.


basically there is not enough isolation with all these return points to prevent particles to go back to the injectors

only 1 third party product that I know of has a fix for this....HS motorsports has a bay namifold that has a screen in the return fuel path that will catch particles at X micron in size...so if you have recirculation going on as part of the ford cold weather feature....this screen will catch something....


seperate from the DPK return filter which only catches particles headed back to the tank.....but doesnt provide any particle isolation for the fuel rail return / bay filter junction point

 

According to this thread, the return fuel from the CP4 goes back through the pre-pump filter on the 2017+ trucks.

https://www.forddoctorsdts.com/forum...dentification/

The thermal valve has been in use on the 6.7s since day one, it was baked into the DFCM on the 2011-2016 and on top of the pre-pump primary fuel filter on the 2017+ The H+S lower fuel filter kit retains it, the FASS and Fleece kits nuke it.

Are you talking about the bypass valve in the secondary fuel filter? That is for 2017-current and has been on the market since 2022 or so? There hasn't been a noticeable uptick in injector failures I would venture to say it is the lesser of two evils. Additionally, if the fuel is cold enough to gell, then the thermal valve is closed so the fuel is effectively a closed loop so the fuel has definitely been through the filters already.

If you really hate that idea, then plumb the 5/16 QC to a stand alone filter head.

On my set up, I have a Baldwin BF1311 filter head for my secondary filter (a BF7587). The filter head has -12 ORB ports, on the inbound side of the filter I have a -12 ORB to -08 AN male which then feeds into a -08 female-male-male tee fitting, one of which is feed from the output line of the low pressure fuel pump in the tank and the other is the fuel injector return. There is no bypass in the BF7587 so all the fuel returned from the injectors is run through the secondary fuel filter and then pumped back to the CP4. I did it this way to help heat the secondary filter when cold and keep the fuel flow as close to OEM as possible, SE Mass has its coldest winter in 25+ years this past year. Had 55psi at start up every morning unassisted even when the air temp was around zero so did what I wanted it to do.