Best Fuel Additive
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Freshman User
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Best Fuel Additive
I have used Lucas Upper Cylinder Lube for years with great results. However I have been reading about Stanadyne and am wanting to try it out. Anyone use it and what are your results. I usually switch to PowerKleen Grey bottle in the winter and it seems to make truck start easier than the lucas. All seem to be good products but would like to get others opinions. I also dump around a pint to a pint and a half of tranny fluid in tank every 3 months (many old time diesel mechanics have sworn on this) to help clean nozzles and really lube up the system
Post Fiend
Joined: Mar 2007
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From: Texas
I've used Stanadyne. Good product, just harder to find than PowerService products. And the gray bottle is actually the summer additive. The white bottle has anti-gel properties included for winter use.
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Freshman User
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I can never find the white bottle around here....either gray or the red for when the fuel turns to molasses! I seen you can get cases of stanadyne on ebay for about 90 bucks shipped(12-16oz bottles) which is about the same as lucas if you buy the little bottles. I usually buy it in gallons
of American machinists
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Post Fiend
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From: Sioux Falls, SD
Most of the time I use Schaeffer's Winterized Dieseltreat during the winter and Dieseltreat During the warmer months. I also have used Stanadyne Performance formula and Schaeffer's Soyshield - all good stuff in my book.
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Post Fiend
Joined: Sep 2006
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From: Sioux Falls, SD
Here is a lubricity comparison of some fuel additives:
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.
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.
Elder User
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Schaeffers dieseltreat. 1.5 cups per tank during the winter, .5 to 1 cup every other tank in summer. -40 temps with no fuel issues so far.
Also run schaeffers partial synthetics. First 2 oil changes were black as night because all that was run before was caseih conventional. My mechanic switched a gasser to scheaffers. 2 oil changes later it started leaking oil becuase the oil cleaned all the deposits. Switched back to conevtional oil and it quit leaking over time!
Also run schaeffers partial synthetics. First 2 oil changes were black as night because all that was run before was caseih conventional. My mechanic switched a gasser to scheaffers. 2 oil changes later it started leaking oil becuase the oil cleaned all the deposits. Switched back to conevtional oil and it quit leaking over time!
Lead Driver
Joined: Jan 2006
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From: Hartford, WI
I don't think there is a way. None of the manufacturers have dared to send their products to a accredited facility for proper testing. Too expensive and could be too revealing which is why the prefer to rely on the unscientific testimonials which are highly subjective and influenced by the placebo effect. Take the Rev-X stuff for instance. Their rep would hand out samples but when quizzed about the test results, none were forthcoming. Basically claimed he couldn't get anything more than I can. Well, if a dealer cannot, who can? Yes, some tests were done but no, we cannot see who did what and how. Sure.
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