[Justus]

I ordered both the oil and fuel additives. I will post results when I have them. It should arrive in a couple of days, then I will have to get a tank through to see the gains. I have been logging my fuel for the last 6-7 fill-ups, so I have a good baseline. I will update results for each tank as I get them.

 

[meteor56]

For my '08 6.4 at 156K: Last oil change at 150K, adding Archoil to oil and each fueling.

My results over six thousand miles were not more than .2mpg difference. Read that as negligible. The product may actually be doing some good other than mileage, but how to tell? If you haven't had the engine apart prior to the additive, and then again after some long term use, then anything inside remains hidden.

In the oil: Archoil uses potassium and boron which are apparently harmless to the engine; it just gives off-the-chart readings for their content. A high potassium not associated with Archoil may indicate coolant in the oil.

Also: I am using Rotella T6 for now. I added the Archoil products at the oil change and each fueling. I had it tested at 6000 miles. The Blackstone report indicated my engine is doing very well with no water or fuel in the oil, and doing great wear-wise. I will retest at 8000 when I next change oil and filter.

Good luck.

 

[yan7gin]

I been using archoil in engine oil and fuel for the last 2yrs and love it.

 

[Reactor]

For my '08 6.4 at 156K: Last oil change at 150K, adding Archoil to oil and each fueling.

My results over six thousand miles were not more than .2mpg difference. Read that as negligible. The product may actually be doing some good other than mileage, but how to tell? If you haven't had the engine apart prior to the additive, and then again after some long term use, then anything inside remains hidden.

In the oil: Archoil uses potassium and boron which are apparently harmless to the engine; it just gives off-the-chart readings for their content. A high potassium not associated with Archoil may indicate coolant in the oil.

Also: I am using Rotella T6 for now. I added the Archoil products at the oil change and each fueling. I had it tested at 6000 miles. The Blackstone report indicated my engine is doing very well with no water or fuel in the oil, and doing great wear-wise. I will retest at 8000 when I next change oil and filter.

Good luck.

Yes, the boron/potassium count is over 30,000ppm. It is a good friction/stiction modifier and preventer but it will not protect against oxidation/corrosion.

 

[Justus]

I been using archoil in engine oil and fuel for the last 2yrs and love it.

Do you have any numbers as to how it has helped you, and why you like it?

 

[Texkenusmc]

I have used it for the last three oil changes and have seen zero difference in my truck.

 

[Justus]

I have used it for the last three oil changes and have seen zero difference in my truck.

Good to know. Since I have already ordered it, I will try it out for this oil cycle and see what if anything it does for me. Thanks.

 

[ArcticDriver]

For my '08 6.4 at 156K: Last oil change at 150K, adding Archoil to oil and each fueling.

My results over six thousand miles were not more than .2mpg difference. Read that as negligible. The product may actually be doing some good other than mileage, but how to tell? If you haven't had the engine apart prior to the additive, and then again after some long term use, then anything inside remains hidden.

In the oil: Archoil uses potassium and boron which are apparently harmless to the engine; it just gives off-the-chart readings for their content. A high potassium not associated with Archoil may indicate coolant in the oil.

Also: I am using Rotella T6 for now. I added the Archoil products at the oil change and each fueling. I had it tested at 6000 miles. The Blackstone report indicated my engine is doing very well with no water or fuel in the oil, and doing great wear-wise. I will retest at 8000 when I next change oil and filter.

Good luck.

I have same miles at 159,000.

I also use Rotella T-6.

Blackstone also gives me a similar glowing report.

I do not use Archoil.

I have read many positive experiences with Archoil.

I was one of the few who did not find an improvement and $40 for one oil treatment is not cheap.

 

[Justus]

Good to know, it seems like it does not do as much for the 6.4L and the 7.3L, but I have heard that the 6.0L love it. Thus I am going to test it myself, I figure $40 once if it does not work, but if it does it will pay it's self off each time.

 

[yan7gin]

Do you have any numbers as to how it has helped you, and why you like it?

here a quote of what my experience

So just adding my experience,

this is my first fill up since I had the archoil with the last oil change. the last 4 tank MPG average (hand calculated) was between 12.4 and 12.7. Last tank (hand calculated) with the mix of tire pressure going from40 psi at 55 psi, I got a 13.9.

I didn't notice any difference in the engine noise when warm but did quiet a bit when cold.

For the fuel additive I like it because it work and it only take a small amount each tank so the bottle last longer than other that I tried

 

[yan7gin]

Good to know, it seems like it does not do as much for the 6.4L and the 7.3L, but I have heard that the 6.0L love it. Thus I am going to test it myself, I figure $40 once if it does not work, but if it does it will pay it's self off each time.

all depend of the engine state before adding the archoil.

Yes it will affect more the 7.3 and 6.0 than the 6.4 or 6.7. The 7.3 and 6.0 are HEUI injectors so use the oil to get fired. the 6.4 and 6.7 are Common-rail injectors and do not need oil to get fired

 

[Justus]

all depend of the engine state before adding the archoil.

Yes it will affect more the 7.3 and 6.0 than the 6.4 or 6.7. The 7.3 and 6.0 are HEUI injectors so use the oil to get fired. the 6.4 and 6.7 are Common-rail injectors and do not need oil to get fired

Good point there, I did not even think of that, thanks.