Diesel Fuel Additives

Hoosier CRD · **Posted:** Wed Oct 05, 2011 6:00 am

Has anyone used any of the diesel fuel additives available?

I have been using Stanadyne Performance Additive (4oz to 15 gal) along with the Stanadyne Lubricity Additive (2oz to 15 gal). To top it off, I have also been using a biocide (.5 oz to 20 gallons) from Racor to make sure that there are no interlopers (algae) in the fuel.

All of this can be used together. It's called "stacking" according to the Stanadyne folks.

My first full tank, with combined city and highway driving, was an average of 27.2 MPG (calculated). I also have the FT Eco Tune from GDE. My EVIC has indicated a 35.5 MPG at one point as a high mark with 24.6 as a low, FWIW.

Curious about your experiences.

Hoosier CRD

warp2diesel · **Posted:** Wed Oct 05, 2011 7:14 am

I will use Cetaine booster with lubricity additives (PS with anti gel Amsoil with out anti gel) if I need to travel in areas with nothing but crap in the pumps.
In my area, Meijer sells premium fuel that has better cetaine and lubricity additives. Marathon also sells good fuel. Citgo sells crap I will not use.
Reminds me to load up my juice when I go to Wisconsin or Iowa.

ATXKJ · **Posted:** Wed Oct 05, 2011 8:11 pm

The only study I'm aware of
http://www.johnfjensen.com/Diesel_fuel_additive_test.pdf

Hoosier CRD · **Posted:** Fri Oct 07, 2011 9:44 am

I 've got Meijer in my area too as well as Marathon; Thanks for those leads. I've been using Pilot/Flying J and Shell. While travelling through KY, TN, NC, SC, and GA, I was not sure what I was going to find. I packed the "Panther P*ss" as one guy I know calls it, just to make sure. I won't buy Citgo on principle (it's political thing).

I'll check out that study soon.

Talk to ya,

Hoosier CRD

mikey1273 · **Posted:** Fri Oct 07, 2011 1:23 pm

I use Power service, Lucas or seaFoam in mine but only every few tanks as a cleaner in summer, in the winter I add some Power service to every tank.

As far as fuel I don't get many Diesel choices here. Local chains like Rutter's, Sheets, and royal farms are most assessable to me. We had several Hess stations but some closed up recently. I got some at Kroger once in WV that was rated righer in cetane than local fuel,45 vs 40 we get here. that was a good tanks too... engine ran smooth and quiet.

Ajamant · **Posted:** Fri Oct 07, 2011 8:44 pm

It's very important for any pre 07 diesel to get additional lubrication in the fuel after the standards were changed to meet the ultra low sulfer requirements.

There was a great independent study I read and I wish I had the link. Basically they changed the standard amount of lubricants required in the fuel. This means the diesel our engines were made to run is no longer available. The article explains it much better and someone has got to have the link.

The two additives that I use that were the absolute best were: at least 2%biodiesel and ashless 2 stroke oil. I run bio all the time and on trips add the 2 stroke oil...... No issues.

Silverdiesel · **Posted:** Fri Oct 07, 2011 9:01 pm

Didn't GDE Kieth mention the CP3 HPFP in KJ CRD have hardened parts to work with the harshness of USA ULSD?
That makes said CP3 able to work with ULSD straight without lube enhancing additives.
Oh it is a good idea to additive but other CRD owners have mentioned here on this forum they have gone 100,000 miles never adding anything with no problems.
I also know my 06 PD VW TDI has a protected Injector Pump and injectors cause VW knew ULSD was on its way.
Again I still add additive to help keep that scar number low.

Roland

warp2diesel · **Posted:** Fri Oct 07, 2011 10:05 pm

Best to play it safe, even with a hardened surface.
To be honest, I have never seen any injection pump working under pressure part or injector tip/needle that was not hardened. I would be stupid not to have hardened surfaces including extra hard coatings on the working parts of the CP3.

I have seen reports on the CP4X where they are self destructing and have metal particles that trash out the fuel system. Unlike the CP3, the CP4X has some aluminum components that are failing. At first the finger was being pointed at bad fuel and now it is pointing at a defective design.
Glad I have a CP3 instead, and I will take care of it.

CRD Joe · **Posted:** Sat Oct 08, 2011 6:19 pm

I use bio diesel whenever possible. Usually either B20 or B50. That's what available in my town. Im working in northern Washington at the moment and there is a Propel station here with B99 so Im using that now. I sure like the smooth quiet engine and the french fry tail pipe. Lol.

Hoosier CRD · **Posted:** Sun Oct 09, 2011 7:21 am

Well,

In reviewing this study noted above, BTW, thanks ATXKJ, if you add together the micron improvement numbers from the Stanadyne Lubricity, #8 (+157) and the Stanadyne Performance, #12 (+33) that totals a +190. All things being equal, that would put these stacked chemicals between the 3rd and 4th top performers in this test. I say well done to Stanadyne! While other offerings did perform better on their own,

Truth be told, I sell Stanadyne. I've recommended the stacking of the Performance and Lubricity formulas to my customers since learning of it from the Stanadyne literature. I will continue to do so as well as using it in my CRD.

Thanks again for the study.

Hoosier CRD

flash7210 · **Posted:** Sun Oct 09, 2011 1:28 pm

Hoosier CRD wrote:

Truth be told, I sell Stanadyne. I've recommended the stacking of the Performance and Lubricity formulas to my customers since learning of it from the Stanadyne literature. I will continue to do so as well as using it in my CRD.

Thanks again for the study.

Hoosier CRD

You sell Stanadyne?
So where can I buy it?
It's not sold at the auto parts store or Walmart
like PowerService is.

papaindigo · **Posted:** Sun Oct 09, 2011 2:29 pm

Generally at a diesel injector service type place. Nice to know another CRD is a close as Green Cove Springs.

Hoosier CRD · **Posted:** Sun Oct 09, 2011 5:41 pm

flash7210 wrote:

Hoosier CRD wrote:

Truth be told, I sell Stanadyne. I've recommended the stacking of the Performance and Lubricity formulas to my customers since learning of it from the Stanadyne literature. I will continue to do so as well as using it in my CRD.

Thanks again for the study.

Hoosier CRD

You sell Stanadyne?
So where can I buy it?
It's not sold at the auto parts store or Walmart
like PowerService is.

Contact any of these companies in Florida. Find the one closest to you. You should be able to go to the location and pick it up. Both Performance and Lubricity are available in 16oz bottles.

http://www.stanadyne.com/locator/submit.php

FWIW,

Hoosier CRD

CRD Joe · **Posted:** Sun Oct 09, 2011 8:03 pm

With respect, if youre not going to use biodiesel why not set Opti-Lube? Obviously its the best of the additives!

KurtP · **Joined:** Wed Sep 07, 2011 7:43 pm **Posts:** 20

Hey guys, n00b here(I have red the sam's noob guide)....not just a n00b to the CRD but to diesel in general. I just bought a 06 crd, 42k. Doing all the recommended updates, GDE tune got here yesterday, TC/SK, exhaust, v6 airbox.

Is there a good place to start researching the differences between diesel fuels? Im guessing by a previous post I can run b99 in the CRD with no issues? Mileage differences? Are cetane points for the CRD as important as Octane for a gasser? Ive noticed as much as 25cent/gal price differences between stations in my area, so maybe i need to check cetane ratings, but I think I have a couple of biodiesel pumps around also.

Thanks guys.

Hoosier CRD · **Posted:** Sun Oct 09, 2011 8:50 pm

CRD Joe wrote:

With respect, if youre not going to use biodiesel why not set Opti-Lube? Obviously its the best of the additives!

Short answer is: I am but one cog in the massive wheel of the company of about 150.

Longer answer (and this is solely my opinion): As a company, we do a tremendous amount of business with the Stanadyne corporation. Given that they have a fuel additive, and that additive is considered top-shelf, it would likely be considered poor form to sell a competitor, either in addition to or instead of Stanadyne. In addition, Stanadyne fuel additives are recommended by more OEM companies than any other additive on the market. When components are serviced at our company from equipment made by those various manufacturers, it helps to bolster the position that they (the OEMs) have taken about using fuel additives, Stanadyne in particular, by having it available in our shops.

The real world example of using the Stanadyne Performance and Lubricity formulas at the prescribed levels is reinforced by the study posted above by ATXKJ. When combined, the resulting micron improvement is 190 or an HFRR measurement of 446. Subtracted from the 636 baseline, the 446 HFRR score is well below the desired levels from the Engine Manufacturer's Association.

Given all that, Stanadyne is the only choice for me.

FWIW,

Hoosier CRD

papaindigo · **Posted:** Mon Oct 10, 2011 10:01 am

KurtP - lots of chat on the forum regarding fuel; for example run a search on biodiesel being sure to limit the search to this forum. I don't often run biodiesel altough my son, stoutdog, has done so in the past. He did not experience any of the initial fuel filter clogging that some mention but then his vehicle is low mileage. I'll let him weigh in if he sees this but his experience is up to B20 runs just fine with little mpg penalty but as you go up from B-20 to B-100 there is a noticable, not huge, mpg hit so while the bio may be cheaper the cost savings is offset somewhat by loss of mpg. Lots of chat, you see some in this string, about the lubrication benefits of bio and I'd probably run B-5-10 if it was easy to get but the nearest station is like a 50 mile round trip so not worth it unless I'm going that way. I do run some Diesel Kleen thru the system from time to time, probably not as often as I should.

I have no opinion on cetane #s but I can say you need to stick to buying fuel from places that sell a lot as that fuel is more likely to be fresh.

CRD Joe · **Posted:** Mon Oct 10, 2011 6:35 pm

As I understand it if you run at least B20 youre getting all the advantage of the lubricity from biodiesel. I try to run at least B20 when I cant get a higher amount.

Drewd · **Joined:** Mon Feb 06, 2006 12:24 pm **Posts:** 902

When I can, I add about 1/2-1 gallon of B100 to each full tank. When I can do that, I add 8 oz of a mxture containing 4 oz of 2 stroke oil and 4 oz of powerservice. A low ash cleaning burning 2 stroke oil works just great for improving lubricity.

KurtP · **Joined:** Wed Sep 07, 2011 7:43 pm **Posts:** 20

Next question- how much are you guys spending on these additives every tank...seems like 3 bottles of whatever on each fill up adds up quick.... :dizzy:

Diesel Fuel Additives

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