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.
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?
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.
15 F350 CC Lariat SRW LWB Ruby Red, Ultra Predator Wheels with Toyo 295/65R20, BAKflip Fibermax tonneau, Diesel Products LED lights in the rear bumper and 20" light bar in the front bumper, Firestone Airbags and Airllift Wireless compressor.
11 F350 CC Lariat SRW LWB Tuxedo Black Sold at 145,000 milesl
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!!!
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
13)Used Motor Oil, Shell Rotella T 15w40, 5,000 miles used.
Unconventional (Not ULSD compliant, may damage systems)
HFRR 634, 2 micron improvement
price: market value
14)Lucas Upper Cylinder Lubricant
Gas or diesel
HFRR 641, 5 microns worse than baseline (statistically insignificant change)
15)B1000 Diesel Fuel Conditioner by Milligan Biotech
Multi-purpose, canola oil based additive
HFRR 644, 8 microns worse than baseline (statistically insignificant change)
16)FPPF Lubricity Plus Fuel Power
Multi-purpose + anti-gel
Emulsifier, alcohol free
HFRR 675, 39 microns worse than baseline fuel
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.
18)ValvTect Diesel Guard Heavy Duty/Marine Diesel Fuel Additive
Cetane improver, emulsifier, alcohol free
HFRR 696, 60 microns worse than baseline fuel
19)Primrose Power Blend 2003
Cetane boost, bio-diesel compatible, emulsifier
HFRR 711, 75 microns worse than baseline
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.