I decided to buy a bottle of Archoil AR6500. I have not noticed any MPG difference, and the fewer regens that they claim are non existent.
I decided to keep an eye on my Regen since using the archoil on every fill up. Basically, the truck has gone into a Regen every 505ish miles.

Anyone else experience this?
I bought it based on the fact they claim it cleans the turbo and a few other things, but now I’m doubting that claim as well.

 

I've never seen MPG increases with anything. For the regens claim you would need to monitor the DPF backpressure and see if the rate of increase lowers or not. You can't just go by regen frequency because the truck will want to regen after hitting a mileage wall regardless of backpressure state. That said, I doubt it will make any difference there either.
The only real thing you'd want from a diesel additive is increased lubricity for your CP4. I know Hot Shot's Secret EDT is good for that. I don't know about the Archoil but never really cared since I know one that works and they're all priced basically the same.

 

Archoil has better lubricity than hot shot secret EDT and for my truck Archoil does increase the interval between or my truck, and by increasing the interval between regens you essentially improve fuel economy.

 

Your truck is an '11 I think? The algorithm might be different for those. I swear with my 21 you could turn the tires by hand for 500 miles and it would try to regen. Frank's is a 23+ and I expect his will be more like mine was, you could run it on pure clean unicorn **** and it would still want to regen at 500 miles I bet.

But yeah, if you can reduce regens you're increasing mpg.

 

I was a long time user of Hot Shots EDT and Better Diesel FBC and it worked very well. I do have OCR turned on in my truck so I can keep auto regens turned off until I actually need to perform one based on the actual DPF filter, not mileage. I easily averaged over 700 miles between regen intervals and have at times got 900 miles. This is unloaded. When towing I never have to complete a regen.

I should also add here that this extended regen interval I experienced was not due to Hot Shots, nor do they make any claims that it will extend them. This was due to the FBC, because that what a fuel borne catalyst does.

Then AR6500 suddenly started showing up everywhere. Lots of (paid?) YouTubers and influencers were suddenly pushing it and there were wild claims of huge mpg increases everywhere. So I figured I would try it. I bought 2 bottles and ran it for 5000 miles. I hand calculate my mpgs every time I fill up, and surprise, surprise, I saw no increase in mpg’s what so ever. I expected this though, because like mentioned above, the only place you would probably see claims like this actually play out is in a lab. Now, maybe if I were running no additive prior to the AR6500 I may have seen a change, but there was absolutely no increase over when I was using the Hot Shots.

And funny enough, my regen intervals actually decreased when using AR6500. I expected this too though because I didn’t expect this all-in-one to perform as well as an actual FBC. (There’s a saying… jack of all trades, master of none.)

So, I have decided to drop the AR6500 and I have went back to using the FBC and I am now giving OptiLube XL a try alongside the FBC. I am trying the XL since I am also using R99 fuel which has a very high cetane rating and is a clean burning fuel, but it lacks in lubricity. The XL compliments this fuel perfectly. When I get out of CA I will go back to either Hot Shots or possibly XPD.

In my experience, the AR6500 is just another additive. I don’t think it’s bad, but there are definitely other products that are as good, if not better. Where they did get things right though is in their advertising… if you know what I mean… But, if you feel good about using it though, that’s great. It is certainly better than nothing. But, don’t feel like you are missing out if you decide to use something else.

 

It's programmed to regen at around 500 miles whether you need it or not so Archoil can't extend it past that.
Quit running it for several months and see if the interval goes down. If so calculate whether its worth it or not.
As far a fuel economy goes. If your area already has higher cetane due to regulations then Archoil won't help. Texas requires minimum of 48 and California is higher than that. Other states are 40. If you live in one of those areas and don't run premium diesel then you should see an increase. Once you get up around 50 any more is just a waste of money

 

Archoil made a considerable difference in my '22 RAM.

The '24 Ford regens at 497 miles every time no matter what. It seems to be hard coded. Regen duration is 11 miles towing Archoil or not. I figured it would shorten the duration.

Why it makes a real difference in the RAM and nothing in the Ford I don't know.

 

I’ve run EDT every fill up since new. My brother gave me a big bottle of Archoil a couple of months ago. I’ve been using it the last 5k miles or so. I’ve noticed a 2mpg decrease since the switch to Archoil. My maintenance schedule, roads I drive, how I drive, etc have all stayed the same. My truck seems to prefer EDT, so I’m going back to it after I finish this bottle of Archoil.

I can’t say for certain about the regen. But something I have noticed was with EDT my filter percent according to truck time of regen was always less than 10% at the time of the trigger. Sometimes it would start the regen at 496 miles and the % full would still be at 0. With Archoil, I still go the full 496 miles, but the filter % has been getting up to 25-30%, and the regens have been taking slightly longer.

 

Because Ram is programmed to regen as needed based on backpressure in the DPF. Once it sees a certain load it'll go into regen. I could go 900 miles without an active regen if I was towing. Less if I wasn't. But regens took FOREVER because it didn't have the 7th injector.

The Ford is programmed to regen at 497 miles regardless of what backpressure load is. Now, it WILL go into a 'passive regen' before that if exhaust temps get high enough...but that active regen hits every 497 miles regardless.

 

Personally use Archoil for lubricity to *hopefully* give the CP4 a long life. I do notice a slight increase in fuel economy while unloaded, its more of a secondary benefit.

 

Not true at least not on my '20. We have made around 18 trips from TX to CO pulling trailers. It's 660 miles one way to our vacation home. The truck does passive regens but NEVER regens at 497 miles while I am towing. Once I get there and unhitch the trailer and head into town it will regen within 20 miles.

 

I'm pretty sure the maditory regen at 497 miles is for 23+ trucks. If you have an older model, I don't believe you have a mileage based regen schedule, But have DPF fitler % based schedule.

If you have an aftermarket gauge, You can monitor when exactly the Active Regen turns on and off ( I assume that indicates when the 9th injector is operational) and you can monitor your ARD ( Average Regen Distance) and your LAST DPF as shown in the photo below.

Green LED at top indicate that an active regen has started, Bottom Left is the Average distance between regens and Bottom Right is the Distance since last Regen.
Again, These only apply to 2023 and newer trucks, These numbers were totally different on my 2020 and my 2017 trucks.

 

This is from my 2020 truck. You can see that I was averaging 329 miles between regens on that truck when this photo was taken.


And I was averaging 484 miles when this photo was taken
The average between active regens varied a lot on my 2020 truck. Depending on how I drove
But it has not varied at all on my 2023 truck in 75,000 miles. It ALWAYS regens at 497 miles

 

My bank's I dash always shows 496, which as I posted above is incorrect. I typically get closer to 700 when towing

 

Where's the PID located for that Last DPF monitor?