Fuel additive
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Tuned
Joined: Jul 2007
Posts: 338
Likes: 1
From: Barbourville Ky
Fuel additive
I think this was discussed here before but i cant seem to find it.With the new ULSD Fuel do I need to use and additive or will everything be okay.
I have a 99 7.3 and would hate to mess something up.
I have a 99 7.3 and would hate to mess something up.
Logistics Pro
Joined: Mar 2004
Posts: 4,221
Likes: 3
Moved to 7.3L PSD section. 
Technically you do not need to. ULSD is supposed to have all the additives it needs to provide proper lubrication and such from the refinery. Some folks worry about it though and run additive every fillup just to be on the safe side.
The way I look at it is it doesn't hurt to run the additive, so if you want to, go for it, but it's probably not necessary. I tend to add some to mine just once in a while, or whenever I'm going to the snow (cold weather).
Powerservice's Dieselkleen is one popular brand... another is Stanadyne Performance Formula.
Technically you do not need to. ULSD is supposed to have all the additives it needs to provide proper lubrication and such from the refinery. Some folks worry about it though and run additive every fillup just to be on the safe side.
The way I look at it is it doesn't hurt to run the additive, so if you want to, go for it, but it's probably not necessary. I tend to add some to mine just once in a while, or whenever I'm going to the snow (cold weather).
Powerservice's Dieselkleen is one popular brand... another is Stanadyne Performance Formula.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Ryan pretty much covered it. The ULSD you buy at the pump already has some lubricity additive in it. There have been some disagreements as to weather there is enough added. A lot of the dispute comes from the original disagreement between the EMA (engine manufacturer's association) the the EPA (idiots) as to how much was enough. The EPA won that argument.
I would suggest trying a couple of different additives and if you can see a fuel mileage increase then stick with the additive. If you don't then it's up to you. If you happen to run any biodiesel then that already has better lubricity than any of the additives.
One word of caution. Both the Dieselkleen and Stanadyne bottles tend to leak once the seal has been punctured. So don't throw an opened bottle anywhere it might drip out and stink up or ruin something.
I would suggest trying a couple of different additives and if you can see a fuel mileage increase then stick with the additive. If you don't then it's up to you. If you happen to run any biodiesel then that already has better lubricity than any of the additives.
One word of caution. Both the Dieselkleen and Stanadyne bottles tend to leak once the seal has been punctured. So don't throw an opened bottle anywhere it might drip out and stink up or ruin something.
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Here's the thing.... The US standard is an HFRR score of 520 microns for ULSD, and the major engine manufacturers wanted 460. That's a 60 micron discrepancy. I add DK to every tank of Dino, and I run Bio when I can. I just so happens that DK improves lubricity by 61 microns which puts it just under the minimum amount wanted by the manufacturers. Some others have done better -- I honestly run DK because I can get it easily and cheaply at Wally-World. I do have a can of Schaeffer's Diesel Treat that I look forward trying on my next tank. It's supposed to be good stuff as well. If could get better stuff as easily, I'd run it.
Here's the Spicer report I referred to:
http://dieselplace.com/forum/showthread.php?t=177728
Here's the Spicer report I referred to:
http://dieselplace.com/forum/showthread.php?t=177728
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
Here's another link to a downloadable version of the report. The last page has a great chart for the breakdown of performance and icludes cost per tank...
http://www.johnfjensen.com/Diesel_fu...itive_test.pdf
I run Schaeffer's Dieseltreat diesel fuel additive.
http://schaefferoil.com/diesel_treat_2000.html
P.S. Joe (Izzy351)- check your cell phone messages man!!! What's up for the 15th?
http://www.johnfjensen.com/Diesel_fu...itive_test.pdf
I run Schaeffer's Dieseltreat diesel fuel additive.
http://schaefferoil.com/diesel_treat_2000.html
P.S. Joe (Izzy351)- check your cell phone messages man!!! What's up for the 15th?
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Originally Posted by white Buffalo
///SNIP///
P.S. Joe (Izzy351)- check your cell phone messages man!!! What's up for the 15th?
P.S. Joe (Izzy351)- check your cell phone messages man!!! What's up for the 15th?
Anyone reading this around the DFW area (or further out, if you want to make the trip!!) that doesn't get the NTxPSA messages, there is a dyno event being put on by Bully Dog in Denton on March 15th. I live a couple miles away from it, so I'm planning on going and spinning the rollers...
Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
Ryan covered it. Personally, I don't trust my new $2K+ injectors having enough lubricity to anyone but myself. As a result, at every fillup my tank gets a fuel treatment. It's worth the peace of mind to me, knowing for sure that the fuel has the necessary lubricity to protect my investment.
I personally use the Schaeffer's Diesel Treat 2000. I bought a 4 gallon case, and then sold 2 of the gallons to some of my diesel owning friends. Since every gallon of it treats 2000 gallons of fuel, that single gallon will get me through at least 50-60 fillups.
I price compared it to DK before I bought it, to be sure the cost would work out, and it was a no brainer to me. For roughly $30 (the cost of a gallon of Diesel Treat), I can treat 2000 gallons of fuel. To treat the same amount of fuel with DK, it would cost over $130. $30 versus $130+...makes sense to me. It may not be the easiest to find and buy, but at the rate I use fuel, I'm only looking at having to buy the Diesel Treat once a year at the most. I've still got a good portion of the one gallon I opened left over from what I bought last summer.
I personally use the Schaeffer's Diesel Treat 2000. I bought a 4 gallon case, and then sold 2 of the gallons to some of my diesel owning friends. Since every gallon of it treats 2000 gallons of fuel, that single gallon will get me through at least 50-60 fillups.
I price compared it to DK before I bought it, to be sure the cost would work out, and it was a no brainer to me. For roughly $30 (the cost of a gallon of Diesel Treat), I can treat 2000 gallons of fuel. To treat the same amount of fuel with DK, it would cost over $130. $30 versus $130+...makes sense to me. It may not be the easiest to find and buy, but at the rate I use fuel, I'm only looking at having to buy the Diesel Treat once a year at the most. I've still got a good portion of the one gallon I opened left over from what I bought last summer.
