Depending on which way the wind is blowing, I regularly get 22 or better not towing.
But, would love 1.5 extra when towing, normally down in the 10 mpg range up til now.

 

The problem with his scar test is he didn't test in a real world configuration and that he should have mixed the additive into diesel using the company's recommended mix ratio. Because his test configuration is in concentrated form disqualifies this test for me.

 

I agree, seeing it used raw is not the recipe. I would like to see an updated version of this test with todays ULSD and todays fuel additives including OPTI-LUBE and others

 

I went on his comments and asked him to do an updated video with hit shots vs archoil. He messaged me back “ Great suggestion”
maybe he’ll do it, but until then. I’m sticking with Archoil.

 

There probably is an optimal number, whatever Ford uses to dyno test would probably be it; or maybe a few # above because of fuel quality standards limitations and accurate testing.

 

Where's that 217 wear scar rating from?

As to your comment, when you say "emulsifier," what do mean?

As to the thread here, my truck has now has over 131k miles and have been using K100 for 130k miles with my truck bought brand new.

I have no idea if it helps with mileage or with regens, I started using it for a very slight cetane increase, lubricity for the CP4, to put water in permanent solution in the fuel and especially used as an anti-gel for winter cold temps.

I've also been using Pittsburgh Power's rebranded Better Diesel Max Mileage. Now that stuff stinks to the high heavens. I keep both the K100 and MM in a Harbor Freight sealed ammo can in the back seat.

I run the MM to attempt to keep the DPF in good shape...

My 2 cents...

 

How does Redline 85plus compare to Optilube xpd? I have seen the old Spicer study that put XPD near the top. I've not seen anything like that on Redline 85plus.

 

Fueled up earlier for my trip, Archoil recommends doing the upper end of its recommended mix rate for the first tankful, I added 6 oz to 34 gallons of fuel, which means there was about 14 gallons in it already, so 6 oz isn't quite their recommendation of 2 oz per 10 gallons, but that was what I had measured out in my 2 and 4 oz bottles. I may add another 2 oz bottle to get up nearer the recommended additive ratio.
I then added 6 oz to the aux tank, and put 57 gallons of fuel in it.
So, will run the main tank, track the miles up to my midway refuel point, then go to the basic additive rate of 1 oz per 10 gallons.
I will watch the regens, usually get one around 800 miles in and none after the trailer is picked up, then will see what the fuel economy was at the refueling point.
Mileage checks after that get more complicated because I will be picking up a trailer in the middle of the refueled miles, skewing those numbers.
Anyway, hopeful that I see something noticeable along the way.

 

I assume most of us use the additives primarily to help with the CP4 staying in tact or at least that we hope happens. Better mileage and cetane ratings would just be a secondary addition that may be helpful or perhaps not.

I have been using Archoil for a few years now but after reading the “cetane” article I’m not sure Archoil is good being it jumps up the cetane beyond what is preferred for a diesel.

From the cetane article:
Engine manufacturers recommend using a 42 cetane rating number in the summer and 46 cetane rating number in the winter.

According to the Archoil website they state the cetane numbers can go up 8-pts from using there product that puts it over 50 which is not good.

I think I’ll look for an additive that does not jump up the cetane but does provide good lupricity which I assume is what we all need to protect our fuel pumps.

Mike

 

Did you test your base fuel to determine the cetane level before the additive? If not you are making an assumption.

 

Nope I have no idea how to do that nor would it even make sense. I don’t have one source of fuel I fill up at I use numerous different stations so if testing was available would I test at each one? Logically I have to just go with the “average” and hope that I fall in the acceptable cetane range most times. Maybe some fill ups are a little high on cetane and others perhaps low? I add an additive to help with my lubricity & luck with my CP4.

Mike

 

I found this in an article from 01/2024. They claim best levels are 45-55.

Most big rig truck fuel stations use a cetane of 40. Here’s a list of examples:

• BP (Amoco branded), 51
• Chevron, 49 (51 with Techron D)
• ConocoPhillips, 48 (California 48-53)
• PetroCanada, 47-51
• Shell, 46;
• Sinclair, 46
• Marathon 45
• Exxon/Mobile, 43-46
• BP, 40-42 (Powerblend 47)
• HESS, 40-45
• Husky, 40 (Max 41-45)
• Sunoco, 40 (Sunoco Gold 45)
• Holiday Stations, 40-43
• Love’s: 40
• Pilot: 40
• Valero: 40
• Sheetz: 40
• Flying J, 40

From what I can find, XPD will give you a 3 point raise with a regular dose.

 

If lubricity increase is the main goal, then the Opti-Lube XL provides the most increase for the lowest price per gallon.

 

So, my initial findings on this Archoil test in my truck yielded so-so results.
I could not quantify much of an increase in fuel economy, although test conditions were not good.
I had a fairly constant somewhat strong headwind starting out from the house most of the way to my fueling point where I top off before continuing on to where I picked up the trailer.
When I topped off my main tank and checked the mileage it came to 20.4 mpg, which from past experience is right inline with normal for my truck.
With favorable winds I have been over 24 mpg at that point a number of times, but usually in the 22 range.
As I said before, fuel economy results after picking up a trailer are very hard to determine as I do not totally top off the fuel tanks, just buy enough fuel to get me to the job site and back home, and the winds after picking the trailer up were very strong headwinds, killing the fuel economy, my guess is somewhere in the low to mid 9 mpg range.
The most, and about the only, favorable result was that my truck did not go through a regeneration cycle until over 1000 miles.
In the recent past, since the emissions recall PCM update, my truck was doing regens IIRC at around 800 miles, and before the software update was a 496 mile cycle like clockwork, the only change was the addition of the Archoil.
I have another bottle of Archoil plus a little left over from the original bottle and will continue to use it until it is gone, but unless some better results start coming through, I will likely just go back to the Opti-Lube XL, as it costs much less, and lubricating the CP4 is my main goal.

 

I'm seeing similar results with my test. On my second tank of Archoil, so far no increase in fuel economy and regen frequency is still unknown as it does funky on/off ACT when starting. It has yet to go above 37% DPF before it regens. It also does partial regens. I updated my iDash yesterday, so that might help determining when it is actually on because I have had two actual regens where the DPF was 1100* but did not show it as active regen. If it is keeping a 496 mile cycle I will know in a day or two as it is approaching what should be regen #11. With my luck it will happen as I pull into my driveway.