Archoil diesel fuel additive…

[RCF71]

I just turned 20k miles on my 2024. I had been using Hot Shots EDT until 2-3 tanks of fuel ago. I used their “double dose” amount in every tank religiously. After seeing one of the videos testing and comparing different additives, I decided to give Archoil a try. So 2-3 tanks ago, I started using it at their “double dose” amount. My last two tanks have been better mpg by far, so much better I struggle to believe its just the additive swap. Like 15% improvement! I got 20mpg driving 70-80mph on i10 from west houston to lake charles and back to west houston, including some driving in town out to a plant and to dinner. Then this past Friday we went to central TX and came back today, got 19mpg on round trip. Neither trip had a strong headwind or tailwind, and being round trips overall elevation change was zero. I have never got close to this mpg. I’m down to 1/8 tank currently and have about 575 miles since filling up in Lake Charles, and shows ~130 miles to empty… 700 miles for this tank, normally this would only be about 580-600 miles.

I don't watch the regens as closely as mpg, but usually see 600-700 miles between. Last one since switching to Archoil went 765 miles.

 

[AXE]

I have seen mpg improvements with additives that help clean and lube injectors. That would usually be higher mileage rigs. But the injector balance rates can get out of spec and not clock fuel correctly if they are dirty. Might have cleaned them up some. Otherwise, there's not much benefit to additives unless the cetane or octane value of fuel/gas is changed.

Also I hear a lot of people say their mileage got better all the way to 30k+ miles. Not sure it would take that long to wear in, but I see guys say it all the time.

 

[RCF71]

Yeah, I use the additives more for lubrication. I am a chemical engineer by degree, have worked refining a good bit, and the move to ULSD definitely impacted fuel lubricity. There are additives added to meet certain lubricity, etc, specs before being sent to retail. But thats less transparent to me than gasoline additives (top tier vs basic, etc). That along with newer pumps and injectors with tighter tolerances, etc., make me think using some additional lubricity additive can’t hurt.

I never have used one for the mpg claims, and am generally cynical about their claims. But this was a step change in mpg, and nothing else really coincides with the change. Still a bit skeptical and will report back.

 

[securityguy]

I have settled on Archoil as well and use it religiously. Started using it as soon as I bought my truck based on all that I read and the reviews. MPG and regen frequency is much better. Every 5K I also use the following:

AR6400-D Diesel Fuel System Cleaner

Restore diesel engine power and performance with AR6400-D Diesel Fuel System Cleaner. Deep clean your injectors, turbo, and DPF for maximum efficiency. Buy now for a complete fuel system restoration.

www.archoil.com

 

[GatorZR2]

Same here Archoil. Noticed a jump right away in the drive summary and overall average went up after a couple tanks. Definitely better lubricity. Cleaner injectors helps with better fuel atomization with nozzle spray which leads to a more complete ignition of the cetane results in better fuel mileage and less regens. I try to get fuel at a top tier fuel brand because the detergent package is usually better. It's a shame we don’t have premium diesel like Europe.

 

[AXE]

I can get 18-19 mpg when I'm not towing and sometimes that happens when I don't think conditions are favorable. For me the biggest mpg jump was after 1500 miles, others say 3k ish. I couldn't get 12 mpg, then suddenly 16 mpg. I'm pretty sure thats in the ecu programming so truck can get through break in. Wear in will continue for 10-15k, but every vehicle is different. Only way to know is do progressive oil analysis.

Your mileage improvements were environmental or mechanical. A big part of environmental is also ambient air temps, which you were likely experiencing lower temps for the first time since spring.

Snake oil additives definitely will not improve your mileage defacto. But if they clean and lube injectors, you may see some improvements if the injectors were even a little dirty.

I have used Opti-Lube XL for a decade or so and Opti-Lube XPD prior to that. They definitely help to lube and clean injectors and quiet the valve train. Since I have used them, my injectors stay in spec and I have not had to clean them. You can monitor them with an OBD II reader and torque pro app if you load the PIDs.

 

[RCF71]

Boost in cetane helps with better fuel atomization which leads to a more complete combustion results in better fuel mileage and less regens. I try to get fuel at a top tier fuel brand because the detergent package is usually better. It's a shame we don’t have premium diesel like Europe.

Just fyi - Cetane is a measure of how easy/quickly it starts to combust once injected, nothing to do with atomization. Higher cetane also leads to more complete combustion, so more energy is generated (and quicker).

Cetane improvers are real, but hard to raise more than 2-3 numbers from my prior diesel trading experience - always had a hard time hitting the 48-51 min cetane needed for some of the more common export areas out of the gulf coast. So when I see claims of 7-8+ increases in cetane I get leery. Of course, raising cetane 2-3 numbers would cost me 3-5cpg (per gallon of ulsd, not additive) and generally make those exports less than attractive, while us adding 6-8oz at $1/oz (around 20cpg on a gal of ulsd basis) isnt cheap but if it really leads to another 2mpg it pays for itself, and I get the added injector cleaning and lubricity along with it. Also, our ulsd has a min spec of 40 in the US, so raising cetane is a bit easier starting from 40 vs 45-47.

Again, jury is still out for me, will be watching it closely.

 

[MO_ZR2]

I just turned 20k miles on my 2024. I had been using Hot Shots EDT until 2-3 tanks of fuel ago. I used their “double dose” amount in every tank religiously. After seeing one of the videos testing and comparing different additives, I decided to give Archoil a try. So 2-3 tanks ago, I started using it at their “double dose” amount. My last two tanks have been better mpg by far, so much better I struggle to believe its just the additive swap. Like 15% improvement! I got 20mpg driving 70-80mph on i10 from west houston to lake charles and back to west houston, including some driving in town out to a plant and to dinner. Then this past Friday we went to central TX and came back today, got 19mpg on round trip. Neither trip had a strong headwind or tailwind, and being round trips overall elevation change was zero. I have never got close to this mpg. I’m down to 1/8 tank currently and have about 575 miles since filling up in Lake Charles, and shows ~130 miles to empty… 700 miles for this tank, normally this would only be about 580-600 miles.

I don't watch the regens as closely as mpg, but usually see 600-700 miles between. Last one since switching to Archoil went 765 miles.

According to my iDash, my DPF% hits 100 and it flips to 'ACT' regen 2-3 times per tank (on road trips, around town, mixed driving...doesn't matter)...I'd love to see that kind of mileage and regen frequency. I think the truck is at 18k miles and it's done this since day 1. I do use the Hotshots EDT 2 ounce per tank and have used it in my other diesels for years.

 

[securityguy]

According to my iDash, my DPF% hits 100 and it flips to 'ACT' regen 2-3 times per tank (on road trips, around town, mixed driving...doesn't matter)...I'd love to see that kind of mileage and regen frequency. I think the truck is at 18k miles and it's done this since day 1. I do use the Hotshots EDT 2 ounce per tank and have used it in my other diesels for years.

Try the Archoil and use 4 ounces per tank. The lowest REGEN I've ever got was from driving very short distances for most of the tank and got 434 miles. On the highway driving up to Virginia, I got close to 800 miles between regens. My MPG increased between 1.5-2 as well.

 

[MO_ZR2]

I might try it but I am super skeptical an additive will double or triple my regen frequency, primarily because I’ve used it for years across numerous trucks without issue (and not necessarily a fan boy here just speaking logically). I was actually wondering if there was an issue in the specific truck tuning or they’d changed regen frequency rates in the latest gen L5P

 

[securityguy]

I might try it but I am super skeptical an additive will double or triple my regen frequency, primarily because I’ve used it for years across numerous trucks without issue (and not necessarily a fan boy here just speaking logically). I was actually wondering if there was an issue in the specific truck tuning or they’d changed regen frequency rates in the latest gen L5P

All I can share is my experience and I have seen several others using Archoil with very similar experiences.

 

[AXE]

I've never seen my truck regen!

Try the Archoil and use 4 ounces per tank. The lowest REGEN I've ever got was from driving very short distances for most of the tank and got 434 miles. On the highway driving up to Virginia, I got close to 800 miles between regens. My MPG increased between 1.5-2 as well.

That's 100% normal regen frequency and your mileage increased cause your truck wore In and conditions were favorable.

The only thing that will increase mileage on these trucks is deleting the emissions system. Possibly tuning! You get rid of pounds, not add ounces to get mileage.

 

[AXE]

All I can share is my experience and I have seen several others using Archoil with very similar experiences.

I assume they all proved this out on the dyno, where conditions are contolled?

 

[AXE]

There's

According to my iDash, my DPF% hits 100 and it flips to 'ACT' regen 2-3 times per tank (on road trips, around town, mixed driving...doesn't matter)...I'd love to see that kind of mileage and regen frequency. I think the truck is at 18k miles and it's done this since day 1. I do use the Hotshots EDT 2 ounce per tank and have used it in my other diesels for years.

A recall on some of these trucks for injectors due to poor mileage and performance. Not every VIN is included, but my service advisor said sometimes they will flash the update anyway and get better results.

I haven't done it yet, but want to see if it improves towing mileage and DEF consumption when towing heavy.

 

[MO_ZR2]

All I can share is my experience and I have seen several others using Archoil with very similar experiences.

Understand. Wasn’t questioning your experience, since you stated you started using it since you bought your truck you don’t know whether your truck was doing a regen 2-3 times per tank of fuel and then archoil prolonged it to 800’ish miles between regen. That is really what I’m pondering, whether that’s actually going to make any difference vs another “issue”. Appreciate the insight.

 

[securityguy]

I look at it the way. Just the fact that cetane and lubricity are increased and better for the engine and fuel pump, it's worth the small price to pay.

 

[MO_ZR2]

Completely agree, why I’ve always used Hotshots EDT - same claims.

 

[AXE]

I look at it the way. Just the fact that cetane and lubricity are increased and better for the engine and fuel pump, it's worth the small price to pay.

It's more important to keep the injectors and fuel system clean and lubricated and than it is to raise centane. Cetane is more of the marketing BS. These injectors run as high as 30,000 psi and any disruption in flow will compromise performance.

 

[JetJockey800]

I agree with others here-keep the injectors clean and lubricated is way more important than a cetane boost. Some things I noticed on both my 24 High Country and the 25 Bison.

I was using HotShots EDT summer and winter versions as the weather dictated.

Using the “performance” dose did nothing but drain the bottle fa$ter and the regen frequency ticked up-about every 250-300 miles. I went to the recommended normal dose-about 300-375 miles.

I switched to HP Lubricants cold weather diesel oil-seems to deal with the ash a little better and the regens went to about 425ish.

I made a switch to Archoil. The regens went to right around 475-500 miles at the normal dose.

With HotShots EDT the DPF soot load would only get to about 6-8%. The Archoil consistently gets to 0% soot load.

Mileage? Don’t know don’t care to know…It’s a truck not a Prius.


Both the 24 and 25 followed this same pattern when not towing. When towing-depending on load and temps it ***should*** be better.

I agree with AXE-a delete is truly the only way to solve it and if I ruled the world I’d fine the manufacturers for saddling us with such nonsense and jail the tree hugging dirt worshipers for stirring up the climate change panic porn. I’m considering a weight reduction program for mine-just need to find a person/company that I’m comfortable and confident with and the after weight loss support should any problems arise.

 

[AXE]

I think my big jug of Opti-Lube XL is getting close to empty. Maybe I'll run a few tanks of Archie to see what happens. My driving is so variable, that I'm not sure I'd ever know if it helped with mileage or regens. I get 8-18 mpg, so I just roll with it.

I used to track regens all the time. I barely even noticed one occur on this truck. I think the only one that sticks in my mind was a regen pulling some steep grades and I knew it was down on power. Really had to keep my foot in it and i was seeing 5.8 mpg.....LMFAO

I was hoping for better EPA response on deletes, but it ain't coming. We have emissions testing after year 5 round these parts. I might just do an emissions in tact tune and call it a day. Then hope they eliminate the bullshit in the next generation.