Here are some old test-results using various lube-aids. Still relevant if you have a rotary-distributor injection pump you want to last as long as possible. I have been using it in my 1994 Ford 7.3 since the new diesel came out. I put a new head & rotor in the pump 180,000 miles ago and it still runs fine. Not really proof of anything except I have not hurt anything.
The US military had severe pump wear problems with Stanadyne rotary pumps. They tried using special hard parts-kits in them to endure low-lube fuel better.
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 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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Today's Featured Article - When Push Comes to Shove - by Dave Patterson. When I was a “kid” (still am to a deree) about two I guess, my parents couldn’t find me one day. They were horrified (we lived by the railroad), my mother thought the worst: "He’s been run over by a train, he’s gone forever!" Where did they find me? Perched up on the seat of the tractor. I’d probably plowed about 3000 acres (in my head anyway) by the time they found me. This is where my love for tractors started and has only gotten worse in my tender 50 yrs on this “green planet”. I’m par
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