2-Stroke Oil as Fuel Additive? - Diesel Forum - TheDieselStop.com
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6.7L Power Stroke Engine and Drivetrain Discussion of the 6.7L Power Stroke diesel engine and drivetrain in the 2011-Up Super Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.7L Power Stroke engine.

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Old 10-20-2011, 03:48 PM   #1 (permalink)
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2-Stroke Oil as Fuel Additive?

Would a 6.7L have any ill effects with running 2-Stroke Oil at a 200:1 Ratio? Any other fuel additives that increase lubrication?
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Old 10-20-2011, 04:48 PM   #2 (permalink)
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The oil may not go well with the SCR system and filter. I used it all the time in my 7.3 but with the new one I am concerned about the added soot for the filter.
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Old 10-20-2011, 06:44 PM   #3 (permalink)
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I don't officially know, but I bet even the newer low ash, no smoke, 2-stroke is still a no-no in the ones with a DPF... Find someone with a Edge CTS and start slow, monitoring soot build-up to see if it is a problem. Obviously, you would need some time with the monitor to develop/figure out a baseline.

Also, Is 2-stroke all that much cheaper than buying a good diesel additive in bulk?
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Old 10-20-2011, 11:07 PM   #4 (permalink)
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I wouldn't, I would use PM-22. It will lubricate and increase cetane.
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Old 10-21-2011, 12:17 PM   #5 (permalink)
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Why try to use a product that was not designed for your use? There are so many option now in diesel fuel additives, that have been engineered from their initial concept as a solution. Why substitute a generic maybe solution?

A two cycle oil MAY offer suitable lubricating qualities, but it doesn't address increasing Cetane, removing water, reducing the Gelling, or a biocide to stop algee growth. Most of the good diesel additives address multiple if not all of these concerns.
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Old 10-21-2011, 02:45 PM   #6 (permalink)
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If, for some reason your engine decides to go south after using that, and Ford can detect that there was something in the fuel that shouldn't have been, you just cost yourself an $18,000 engine.......not counting labor to do the change over. Do you feel lucky? Me.........not so much!!!
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Old 10-21-2011, 03:45 PM   #7 (permalink)
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Add in another $10,000 for the fuel system if something goes wrong there.
Stick to the Motorcraft PM-22-A cetane boost additive.
4 oz per 25 gal.
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Old 10-21-2011, 07:10 PM   #8 (permalink)
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I agree with Painted horse. many good proven addatives available.
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Old 10-21-2011, 08:32 PM   #9 (permalink)
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This may help:

THE RESULTS:

These results are listed in the order of performance in the HFRR test. The baseline fuel used in every test started at an HFRR score of 636. The score shown is the tested HFRR score of the baseline fuel/additive blend.
Also included is the wear scar improvement provided by the additive as well as other claimed benefits of the additive. Each additive is also categorized as a Multi-purpose additive, Multi-purpose + anti-gel, Lubricity only, non-conventional, or as an additive capable of treating both gasoline and diesel fuel.
As a convenience to the reader there is also information on price per treated tank of diesel fuel (using a 26 gallon tank), and dosage per 26 gallon tank provided as “ounces of additive per 26 gallon tank”.

In Order Of Performance:

1) 2% REG SoyPower biodiesel
HFRR 221, 415 micron improvement.
50:1 ratio of baseline fuel to 100% biodiesel
66.56 oz. of 100% biodiesel per 26 gallons of diesel fuel
Price: market value

2)Opti-Lube XPD
Multi-purpose + anti-gel
cetane improver, demulsifier
HFRR 317, 319 micron improvement.
256:1 ratio
13 oz/tank
$4.35/tank

3)FPPF RV, Bus, SUV Diesel/Gas fuel treatment
Gas and Diesel
cetane improver, emulsifier
HFRR 439, 197 micron improvement
640:1 ratio
5.2 oz/tank
$2.60/tank

4)Opti-Lube Summer Blend
Multi-purpose
demulsifier
HFRR 447, 189 micron improvement
3000:1 ratio
1.11 oz/tank
$0.68/tank

5)Opti-Lube Winter Blend
Muti-purpose + anti-gel
cetane improver
HFRR 461, 175 micron improvement
512:1 ratio
6.5 oz/tank
$3.65/tank

6)Schaeffer Diesel Treat 2000
Multi-purpose + anti-gel
cetane improver, emulsifier, bio-diesel compatible
HFRR 470, 166 micron improvement
1000:1 ratio
3.32 oz/tank
$1.87/tank

7)Super Tech Outboard 2-cycle TC-W3 engine oil
Unconventional (Not ULSD compliant, may damage 2007 or newer systems)
HFRR 474, 162 micron improvement
200:1 ratio
16.64 oz/tank
$1.09/tank

8)Stanadyne Lubricity Formula
Lubricity Only
demulsifier, 5% bio-diesel compatible, alcohol free
HFRR 479, 157 micron improvement
1000:1 ratio
3.32 oz/tank
$1.00/tank

9)Amsoil Diesel Concentrate
Multi-purpose
demulsifier, bio-diesel compatible, alcohol free
HFRR 488, 148 micron improvement
640:1 ratio
5.2 oz/tank
$2.16/tank

10)Power Service Diesel Kleen + Cetane Boost
Multi-purpose
Cetane improver, bio-diesel compatible, alcohol free
HFRR 575, 61 micron improvement
400:1 ratio
8.32 oz/tank
$1.58/tank

11)Howe’s Meaner Power Kleaner
Multi-purpose
Alcohol free
HFRR 586, 50 micron improvement
1000:1 ratio
3.32 oz/tank
$1.36/tank

12)Stanadyne Performance Formula
Multi-purpose + anti-gel
cetane improver, demulsifier, 5% bio-diesel compatible, alcohol free
HFRR 603, 33 micron improvement
480:1 ratio
6.9 oz/tank
$4.35/tank

13)Used Motor Oil, Shell Rotella T 15w40, 5,000 miles used.
Unconventional (Not ULSD compliant, may damage systems)
HFRR 634, 2 micron improvement
200:1 ratio
16.64 oz/tank
price: market value

14)Lucas Upper Cylinder Lubricant
Gas or diesel
HFRR 641, 5 microns worse than baseline (statistically insignificant change)
427:1 ratio
7.8 oz/tank
$2.65/tank

15)B1000 Diesel Fuel Conditioner by Milligan Biotech
Multi-purpose, canola oil based additive
HFRR 644, 8 microns worse than baseline (statistically insignificant change)
1000:1 ratio
3.32 oz/tank
$2.67/tank

16)FPPF Lubricity Plus Fuel Power
Multi-purpose + anti-gel
Emulsifier, alcohol free
HFRR 675, 39 microns worse than baseline fuel
1000:1 ratio
3.32 oz/tank
$1.12/tank

17)Marvel Mystery Oil
Gas, oil and Diesel fuel additive (NOT ULSD compliant, may damage 2007 and newer systems)
HFRR 678, 42 microns worse than baseline fuel.
320:1 ratio
10.4 oz/tank
$3.22/tank

18)ValvTect Diesel Guard Heavy Duty/Marine Diesel Fuel Additive
Multi-purpose
Cetane improver, emulsifier, alcohol free
HFRR 696, 60 microns worse than baseline fuel
1000:1 ratio
3.32 oz/tank
$2.38/tank

19)Primrose Power Blend 2003
Multi-purpose
Cetane boost, bio-diesel compatible, emulsifier
HFRR 711, 75 microns worse than baseline
1066:1 ratio
3.12 oz/tank
$1.39/tank

CONCLUSIONS:

Products 1 through 4 were able to improve the unadditized fuel to an HFRR score of 460 or better. This meets the most strict requirements requested by the Engine Manufacturers Association.
Products 1 through 9 were able to improve the unadditized fuel to an HFRR score of 520 or better, meeting the U.S. diesel fuel requirements for maximum wear scar in a commercially available diesel fuel.
Products 16 through 19 were found to cause the fuel/additive blend to perform worse than the baseline fuel. The cause for this is speculative. This is not unprecedented in HFRR testing and can be caused by alcohol or other components in the additives. Further investigation into the possibilities behind these poor results will investigated.
Any additive testing within +/- 20 microns of the baseline fuel could be considered to have no significant change. The repeatability of this test allows for a +/- 20 micron variability to be considered insignificant.
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Old 10-22-2011, 09:20 AM   #10 (permalink)
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Fulltimer50. Do you know of a source that ran this same test using the motorcract PM-22-A or the PM 23 A. it being made by someone,one would think iit was tested.Thanks
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Old 10-22-2011, 09:47 AM   #11 (permalink)
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Thanks for the wealth of information guys...I think I thought I STILL owned a 7.3L still LOL.
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Old 10-22-2011, 04:45 PM   #12 (permalink)
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I suspect that when these tests were made that there was no PM-22 or 23
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Old 10-23-2011, 08:11 AM   #13 (permalink)
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I remember reading the entire article that came from awhile ago- and you are probably right that the FM stuff wasn't around or being widely used then.

Time for someone to do another test with what is out in the Market today and have them add the new 2-Stroke Oil to the test just to see... (I still wouldn't use it even if it was #1 in the test)
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