Add me to the Archoil 6400d believers

[FE427TP]

Truck typically regents every 200-300 miles. I’ll get several days with no movement of the dpf gauge then it’ll fill and go into regen over the next 3-4 trips. I poured a bottle in and refilled the tank with a high flow nozzle to mix it. The gauge was at 25% when I filled it. It went to 40 percent. Then stayed there. Then went down to 25 percent again. This morning it went down to the 12 percent range with essentially the same driving routine aside from a short 20 mile jaunt across town at freeway speed. It has never done that before. I’ve only used the initial 5000 mile treatment so far. And have only burned the first 1/4 tank worth of fuel.

With that in mind it has me leaning much more to fuel quality/injection issues causing the regen rates we are seeing.

 

[Wholeo]

I'm using Hot Shots Extreme in my current tank, as soon as I saw the truck go into regen I hopped on the interstate and it completed in 16 miles instead of 100 miles that I'm used to seeing with non treated fuel. I will be ordering Archoil, Hot Shots was my best option off the store shelf.

 

[OLEJOE]

I'm using Hot Shots Extreme in my current tank, as soon as I saw the truck go into regen I hopped on the interstate and it completed in 16 miles instead of 100 miles that I'm used to seeing with non treated fuel. I will be ordering Archoil, Hot Shots was my best option off the store shelf.

The Archoil definitely worked for me. The DPF gauge on my truck was up to about 3/16 but about 30 miles of interstate driving it went back to zero and about 30 minutes later did an active regen on the 24 hour schedule. The previous regen was at 11 hours. I’m currently running the every tank (6500D) formula mixed 1 oz per 10 gallons.

 

[mbarber84]

I'm using Hot Shots Extreme in my current tank, as soon as I saw the truck go into regen I hopped on the interstate and it completed in 16 miles instead of 100 miles that I'm used to seeing with non treated fuel. I will be ordering Archoil, Hot Shots was my best option off the store shelf.

If it’s taking 100 miles to complete an active regeneration cycle, there’s something else going on and untreated fuel isn’t the cause. Are you allowing every regeneration cycle to complete, or are you interrupting them?

 

[Wholeo]

I'm sure I have interrupted in the past, since the topic of regens came up I watch the evic religiously and I just started taking time stamp photos to keep track.

 

[mbarber84]

I'm sure I have interrupted in the past, since the topic of regens came up I watch the evic religiously and I just started taking time stamp photos to keep track.

Those long regen cycles may have been due to repeatedly interrupting the cycles. If you get the “continue driving” version of the regeneration message, that’s usually a good indicator that either the routine regeneration cycles have been interrupted several times, or there’s a pending issue with one of the systems involved in regeneration and it’s not effectively removing the soot.

 

[Wholeo]

Have never got the Continue Driving message, which I hope is a good thing. Let me clear up what I wrote earlier, the last 100 mile trip I took was when I seen the gage approaching half, not Auto Regen and it took that long to drop to zero, I hope that is normal.

Like I said I have started watching the gage, even leaving it on the screen most of the time and tracking. There is so much useful information and tips from members on this forum and some real horror stories that members are going through.

 

[Wholeo]

Not to get too far off topic, Archoil will be waiting when I get home Friday. It was 30% off on Amazon.

 

[Pearce]

I started my archoil AR6500 experiment on July 5. I opted to skip the AR6400D and went with the double dose of 6500. With a full tank on the 5th I went into regen at the start of a 1 hour drive at 75 mph. Took 35 min to complete. Then hour drive home on the 7th. My gauge stayed at zero till the 13th (this never happens) and then steadily climbed to about 45% this morning the 18th. My week day driving is very "in town" and no towing. So I expect this. I do believe it has made an improvement based on what I typically see week to week. Probably should have started with the D but I was being cheap at the time lol.

 

[OLEJOE]

I started my archoil AR6500 experiment on July 5. I opted to skip the AR6400D and went with the double dose of 6500. With a full tank on the 5th I went into regen at the start of a 1 hour drive at 75 mph. Took 35 min to complete. Then hour drive home on the 7th. My gauge stayed at zero till the 13th (this never happens) and then steadily climbed to about 45% this morning the 18th. My week day driving is very "in town" and no towing. So I expect this. I do believe it has made an improvement based on what I typically see week to week. Probably should have started with the D but I was being cheap at the time lol.

The 6400D does an amazing job of cleaning the DPF and all related fuel system components. I plan to use the 6400D every 7K miles as recommended and the 6500D between. Atleast until cooler weather comes back anyhow.

 

[mbarber84]

The 6400D does an amazing job of cleaning the DPF and all related fuel system components. I plan to use the 6400D every 7K miles as recommended and the 6500D between. Atleast until cooler weather comes back anyhow.

Please correct me if I’m wrong, but I thought the 6400D was recommended every 5,000 miles?

 

[OLEJOE]

Please correct me if I’m wrong, but I thought the 6400D was recommended every 5,000 miles?

You are correct. It does say every 5000 or as needed.
The 6500D is 1 oz per 10 gallons, so 40 oz does 400 gallons @ 18 mpg average comes to 7200 miles. I guess that’s where I came up with the 7000 miles. I plan on running the 6500D until I finish the bottle and then see what it looks like. If it starts earlier regens, then it will get another dose of 6400.

 

[mbarber84]

You are correct. It does say every 5000 or as needed.
The 6500D is 1 oz per 10 gallons, so 40 oz does 400 gallons @ 18 mpg average comes to 7200 miles. I guess that’s where I came up with the 7000 miles. I plan on running the 6500D until I finish the bottle and then see what it looks like. If it starts earlier regens, then it will get another dose of 6400.

Ok thanks. I thought maybe I had read that wrong. I’ll definitely be sticking with that dosage recommendation.

 

[flan]

The elephant in the room is WHAT does the arch oil do to the diesel fuel that causes less frequent regenerations of the DPF?

Theroy;

Whatever this additive does to combustion temps is the parameter that needs to be adjusted in the engine tune.

The Duramax L5P had a recall where the regen temperatures were too HIGH, causing damage to the DPF. It seems to me the Cummins has been running too low a temp not burning out the accumulation. The increased combustion temps the archoil is providing is making up for that error in the tuning.

Related:
Recall Title:
DPF Regeneration Temperature
Recall Description:
General Motors has decided to conduct a Voluntary Emissions Recall to improve the operation of the regeneration cycle on certain 2020 Chevrolet Silverado and GMC Sierra vehicles with a 6.6L diesel engine. The recall will address that currently under certain operating conditions, higher than necessary temperatures may be used to clean the Diesel Particulate Filter (DPF) during the regeneration cycle.

Repair Description:
Dealers are to reprogram the Engine Control Module (ECM) and Transmission Control Module (TCM).

 

[Enve46]

First tank with 6400D was right after an active regen, regular driving my DPF gauge was 30% in the first 100 miles. After that and into my second tank of fuel, DPF hasn't budged. My driving is not ideal for emission systems, I know that but it seems the 6400D did what its sold to do. I agree with @flan here that it raises combustion temps in normal operation allowing for more passive regens to take place. This would correlate with why we see more passive regens in the cooler weather as I am assuming the computer is using ambient temperature along side of IAT to adjust its operation. Thats a theory that sounds good in my head so I am running with it. Hahaha

I actually sold my AEV Prospector after a few short months however. Going back to a 4th gen to make room for a rowdy big block powered muscle car. The AEV was an awesome daily. I really wish I had a chance to tune it but oh well

 

[FE427TP]

Same thing tonight. It had crept up to around 30 percent. Went for a 35 mile or so drive round trip with a stop in the middle and it dropped back down to the lowest level above zero. Very happy with the improvement to say the least. I’ll be refueling tomorrow with the 6500 bottle and possibly a 110 mile or so round trip thereafter

 

[CaptainMike]

My EVIC has been sitting on zero for the whole tank of fuel with the cleaner added I went through. I'm guessing 500 - 600 miles of mixed driving and a bit of idling while hitching/unhitching trailers. I'm an hour or so away from a 24 that will occur with with a tank full of the treatment.

 

[g00fy]

Well, after the OP and everyone else great reviews, I bought a 4 pack to try out. 1 for my personal 2500, 1 for the 5500 delivery truck, 1 for our Freightliner M2 106, 1 for my wifes diesel Equinox. Hopefully it helps reduce emissions problems.

 

[AH64ID]

The elephant in the room is WHAT does the arch oil do to the diesel fuel that causes less frequent regenerations of the DPF?

Theroy;

Whatever this additive does to combustion temps is the parameter that needs to be adjusted in the engine tune.

The Duramax L5P had a recall where the regen temperatures were too HIGH, causing damage to the DPF. It seems to me the Cummins has been running too low a temp not burning out the accumulation. The increased combustion temps the archoil is providing is making up for that error in the tuning.

Related:
Recall Title:
DPF Regeneration Temperature
Recall Description:
General Motors has decided to conduct a Voluntary Emissions Recall to improve the operation of the regeneration cycle on certain 2020 Chevrolet Silverado and GMC Sierra vehicles with a 6.6L diesel engine. The recall will address that currently under certain operating conditions, higher than necessary temperatures may be used to clean the Diesel Particulate Filter (DPF) during the regeneration cycle.

Repair Description:
Dealers are to reprogram the Engine Control Module (ECM) and Transmission Control Module (TCM).

I've been thinking about this and not sure I fully agree. The L5P excessive regen temp was during active regeneration and the issues that most Cummins users are having is insufficient passive regen, and passive regen is what the archoil 6400D is improving.

The easiest way to increase exhaust temps (not necessarily combustion temps) is to retard the injection timing. The makes more of the combustion heat go out the exhaust, our engines do this to warm the exhaust during active regen already. There a a couple drawbacks to this, mainly reduced performance for the same quantity of fuel as the heat is going into the exhaust instead of the piston during the powerstroke. You can also lower the rail pressure to extend the duration, which creates higher EGT's but that also results in lower power/efficiency.

I have personally not seen 6400D provide a substantial increase to EGT's, at least enough for the high level of passive regen that occurs, so it makes more sense to me that the 6400D is chemically cleaning the soot off vs altering combustion to the point of such a drastic improvement in passive regen.

 

[Pearce]

I started my archoil AR6500 experiment on July 5. I opted to skip the AR6400D and went with the double dose of 6500. With a full tank on the 5th I went into regen at the start of a 1 hour drive at 75 mph. Took 35 min to complete. Then hour drive home on the 7th. My gauge stayed at zero till the 13th (this never happens) and then steadily climbed to about 45% this morning the 18th. My week day driving is very "in town" and no towing. So I expect this. I do believe it has made an improvement based on what I typically see week to week. Probably should have started with the D but I was being cheap at the time lol.

Update to how this is going for me. On the 20th I filled up from 1/4 tank and put in AR6400D. I was already at 0% on the gauge. Then between the 25th and 26th the gauge went up to 45%. Which is unusually quick in that short of time. The night of the 26th I had to make a 2 hour round trip highway drive and went into regen at the beginning of it for only 15 min. Since then I've been at 0% and I'm back down to 1/4 tank. The stuff does something for sure. Especially the D formula. Will report back after the next tank of 6500 is complete.