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Gunk Diesel Fuel Sulfur Substitute

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Old Apr 8, 2008 | 09:18 AM
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Boss Hoss 540's Avatar
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Gunk Diesel Fuel Sulfur Substitute

Guys---have always run Standyne but a friend of mine tried this in his Duramax and swore better mileage and a quieter engine and of course I said “bull hockey” show me so next time we went to the ranch I had to agree it was noticeably quieter. Could not verify the mileage part but I have run 3 tanks now and my engine does run quiter and I did pick up about .75 mpg in fact these last 3 tanks have given me the best mileage I have ever gotten.. Anyone try this stuff yet---seems too good to be true hope it is not hurting anything.
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Old Apr 8, 2008 | 09:42 AM
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Check Gunk MSDS between the sulphur substitute and their fuel injector cleaner. Same stuff and heavy on the solvent.

If you want to add sulphur back to your fuel just dump in some non detergent motor oil.

MikeyB
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Old Apr 8, 2008 | 09:49 AM
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Sounds like a sales gimmick since the amount of sulfur in fuel has no effect on an engine's performance.
It's the process that removes the sulfur that causes the problems in that it also reduces the fuel's lube qualities.
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Old Apr 8, 2008 | 05:40 PM
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I am very familiar with the refining process and the relationship between the removal of sulfur and the corresponding effect it has on fuel lubricity. This product for whatever reason has worked better than any of the Standyne or Lucas products I have tried in this vehicle over the years. Can’t figure it out because I cannot find any testing data on it yet..
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Old Apr 9, 2008 | 11:21 AM
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It looks like the main ingredient in this additive is Aliphatic Hydrocarbon Solvent.
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Old Apr 10, 2008 | 11:43 PM
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Originally Posted by MikeyB
If you want to add sulphur back to your fuel just dump in some non detergent motor oil.

MikeyB
What brand is a non-detergent motor oil?
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Old Apr 11, 2008 | 07:08 AM
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From: Tomball, Texas
Originally Posted by wcbcruzer
What brand is a non-detergent motor oil?
Look for straight weight motor oils with a SAE 'SA' rating. I seen these oils in 20, 30, and 40w.

Walmart usually has this type of oil in stock.

MikeyB
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Old Apr 11, 2008 | 12:06 PM
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Ah I see... I've been contemplating running waste motor oil after seeing that thread but I'm still kinda hesitant.
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Old Apr 14, 2008 | 01:50 PM
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What weight of non-detergent should you use, and how much per tankful?
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Old Apr 14, 2008 | 02:06 PM
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I would not run any lubricant that was not designed to be burned. Engine oil will burn, but no totally nor cleanly. If you want oil, run 2 cycle... but that's been tested and is not the lubricity additive we all thought it might be (nor is engine oil).
As stated, It's not the sulfur, it's the aeromatics that get removed during the desulfurization that has reduced lubricity and mileage.
Don't know aliphatic solvent or if it adds areomatics...but doubt it?

RJ
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Old Jul 18, 2008 | 09:22 AM
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Been running this stuff about 5k and it does work! MPG has picked a little over .6 and the engine is running quieter than it did before. This is the best additive that I have used over the years. Wish someone would conduct some testing in the lab on it.
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Old Jul 18, 2008 | 11:50 AM
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Originally Posted by Boss Hoss 540
Been running this stuff about 5k and it does work! MPG has picked a little over .6 and the engine is running quieter than it did before. This is the best additive that I have used over the years. Wish someone would conduct some testing in the lab on it.
Did some research and checked their MSDS Sheet. Product is primarily Aliphatic Solvents .... which are Saturated Hydrocarbon and, as such, contain (add) no aeromatics.
So don't see how the product increases lubricity, but I hear you are happy with it..... so Good Luck!

RJ
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Old Jul 18, 2008 | 12:01 PM
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Originally Posted by RowJ
Did some research and checked their MSDS Sheet. Product is primarily Aliphatic Solvents .... which are Saturated Hydrocarbon and, as such, contain (add) no aeromatics.
So don't see how the product increases lubricity, but I hear you are happy with it..... so Good Luck!

RJ
thanx. some companies make it kinda hard to find out what's actually in their additives- that would concern me if i was using their product.
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Old Jul 18, 2008 | 05:13 PM
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Originally Posted by RowJ
As stated, It's not the sulfur, it's the aeromatics that get removed during the desulfurization that has reduced lubricity and mileage.

RJ
It's spelled Aromatics. Sorry about being picky but I work in an aromatics chemical plant.
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Old Jul 21, 2008 | 07:26 AM
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Originally Posted by brianpgriset
It's spelled Aromatics.
Thanks, I DID know that...guess my flying background got in the way of my spelling!!

RJ
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