I have searched this site and found a lot of info on fuel additives. I understand that Stanadyne Performance Formula is a demulsifier and FPPF Total Power is a emulsifier. The diesel supplement of the owners manual said not to use additives with alcohol or additives that are emulsifiers. In my mind that makes the choice pretty clear but I think there are many users of both products as well as other brands fuel additives.

The Stanadyne and the FPPF seem to be talked about on this site and the other site the most. Which product is best? Also, what would the advantage be in using the FPPF product even when the owners manual states not to use a emulsifier.

From GM:

The use of diesel fuel additives is not required or recommended for the 6.5L diesel or the 6.6L Duramax(R) Diesel engine under normal conditions. The filtering system is designed to block water and contaminants without the use of additives. However, some customers may desire to use fuel additives to improve the characteristics of available diesel fuels.

Water Emulsifiers and Demulsifiers

If the customer desires to use a fuel additive, care must be taken in its selection. There are two common methods that fuel additives use to cope with water in the fuel. One method is through demulsification of water in the fuel. This method causes water particles to combine together to form larger particles, which drop out of suspension. This allows the fuel filter/water separator to separate the water from the fuel as it is designed to. The other method of coping with water in the fuel is through emulsification. This method, often using alcohol as the emulsifier, keeps water particles suspended in the fuel. Emulsification of water in the fuel can allow water to get past the fuel filter/water separator, in most cases causing damage to the fuel system.

Only alcohol free water demulsifiers should be used in General Motors diesel engines. Both *Racor(R) and *Stanadyne(R) diesel fuel additives are alcohol free and utilize water demulsifiers to cope with water in the fuel. Other brands may be available in different areas; be sure that they clearly state that they are alcohol free demulsifiers before use.

*We believe these sources and their products to be reliable. General Motors does not endorse, indicate any preference for or assume any responsibility for the products from these firms or for any such items which may be available from other sources.


2005 Chevy Silverado 3500 LT SRW; Crew Cab Long Box ; Duramax (LLY)/Allison; Luverne stainless steel running boards; Isspro gauges; Super Duty Air Lift air bags; Bed Rug bed liner.

stanadyne is my favorite

stanadine lubricity formula.:ro)

I have used Stanadyne Performance Formula for over a year now and love it. I figure if GM backs it, it's okay to use and if Stanadyne actually makes injection pumps they ought to know what they are doing. I know that Kennedy Diesel sells the FPPF and I don't think John would use anything that would hurt his Duramaxes. I'm sure either one will work great.
:grd:

I have used Stanadyne Performance Formula for over a year now and love it. I figure if GM backs it, it's okay to use and if Stanadyne actually makes injection pumps they ought to know what they are doing. I know that Kennedy Diesel sells the FPPF and I don't think John would use anything that would hurt his Duramaxes. I'm sure either one will work great.
:grd:

That reasoning is good, BUT Stanadyne is not reputed to make a very high quality product in most cases. In this case, Stanadyne Perf formula is a very good product, I just feel that the FPPF product is much better and a better cost/gallon treated too...

FPPF +8 and Total Power used here. 26,000 miles no problems.

My dealership told me to not use any additive that has alcohol as well. He said "one shot" (showed me a bottle of it) is a very good choice to use. Being my first diesel, I'm not sure which to use.. but being they have been very upfront with me and have gone out of there way.. I'm leaning towards that stuff. One small bottle will take care of 1 1/2 tanks of fuel

That reasoning is good, BUT Stanadyne is not reputed to make a very high quality product in most cases. In this case, Stanadyne Perf formula is a very good product, I just feel that the FPPF product is much better and a better cost/gallon treated too...

Kennedy, I know you use FPPF Total Power and have had very good results. I understand it is a emulsifier and the owners manual states very clearly that emulsifiers should not be used. If I or someone else where to use the Total Power product, purchased from your business, and damage to the fuel system where to occur and GM voids the warranty because an emulsifier (FPPF Total Power) was used would FPPF and/or your company foot the bill to repair the vehicle?

The Stanadyne Performance Formula is a demulsifier and the way I understand it, please correct me if I am wrong, it somehow encapsulates the water molecules so they are no longer suspended in the fuel. The water molecules are then more easily seperated from the fuel and collected taking advantage of the way the system is designed to work.

The FPPF Total Power emulsifies which disperses the water, again please correct me if I am wrong. Doesn't that make it more difficult for the water to be seperated and the system do what it is designed to do?

Like I said before, I know you and have had great success with FPPF and so have others but I just can't get past GM specifically stating that emulsifiers should not be used. GM's concern must be that emulsified/dispersed water will not be seperated from the fuel and allowed to continue through the fuel delivery system and cause damage. If so, then GM would have the right to void the warranty:( .

I understand that the FPPF product is less expensive but I'm not concerned about the cost, I just want to use the best product for my truck without taking a chance on voiding the warranty. The best product is not always the most expensive product, but you usually get what you pay for.

I used Standyne for years with no effect, I am now using FPPF and it feels like I'm using premium diesel. i can feel the difference when I use it and when I do not use it.

Is the Power Services diesel fuel supplement ok? I use it every other tank.

Is the Power Services diesel fuel supplement ok? I use it every other tank.

Can't say, but I'm using it too. I did see that it's alcohol free, and that it is a dispersant (emulsifier).

Ed

My best suggestion is to use FPPF Total Power, but if dealer asks, tell him you use Stanadyne.

We know that there is water in all diesel fuel so a demulsifier should collect it right? So where is the water in your separator with "Aquablock" media?

The only place I will pour Power Service is in my drain oil bin.

The only place I will pour Power Service is in my drain oil bin.

I wouldnt contamininate my waste oil like that

The Stanadyne and the FPPF seem to be talked about on this site and the other site the most. Which product is best? Also, what would the advantage be in using the FPPF product even when the owners manual states not to use a emulsifier.

this is an often debated topic that has been around for a long time and I really don't know if there is a single correct answer ... I started buring FPPF's Total Power fuel treatment added at every fill-up about 2 years ago when the truck had less than 25,000 miles on it ... as of right now it has 99,500+ miles without any engine issues whatsoever (note we have an early '02 with '01 injectors) ... does it help??? I can't prove that it does but the truck has run so strong for so long with absolutely no problems that I a somewhat skeptical about using anything else

Jim

What auto parts stores can you get the FPPF's Total Power? Why do some of you dislike the Power Service's products? Is it as easily attainable as the Power Services? What about Marvel Mystery Oil?

Wall Mart dosn't carry this stuff, where do you get it???

I used Stanadyne religiously in my 99 6.5TD Tahoe for 103,000 miles. Then I traded it in on my 2001 Duramax. Stanadyne makes injection pumps - but not Bosch HPCR injection pumps. I felt Stanadyne was the best lubricity product that I could use for my 6.5TD engine and Stanadyne injection pump. For my Dmax, it's FPPF Total Power all the way. One ounce to ten gallons of diesel. I've used it every tankful in both my OEM and aux tanks on the DMax (an "original" 2001 with "original" injectors) for 105,800 trouble-free miles now. Works for me. FPPF is not readily available in parts or discount stores. You'll have to locate a source and order it. They have a website and John Kennedy is a supplier. A 12 quart case will last you a long time at 1 oz/10 gals treatment! (That's 384 oz. and will treat 3,840 gallons)

Try going to www.fppf.com

Make sure you take a gander at the "Product Demonstration" link. It has 3 very informative video clips!

I Have Been Using Howe's Lubricator For Two Months And Absolutely Love It! Chevy Diesel Tech Said It Was The Best On The Market. I Believe It 100%

My best suggestion is to use FPPF Total Power, but if dealer asks, tell him you use Stanadyne.

We know that there is water in all diesel fuel so a demulsifier should collect it right? So where is the water in your separator with "Aquablock" media?

The only place I will pour Power Service is in my drain oil bin.

Why? As a relative newbie here, I want to use the best product, but I don't blindly follow the pack either. What is it about Power Service that is so bad? What is it about the others that is so good? I'm not trying to start a flame war here, I just need a little proof to mail order something over a product I can get at the local NAPA. Help me to understand why I need to buy the Standyne, or FPPF and I will. Sell me on this stuff and I'll buy it!

Try going to www.fppf.com (http://www.fppf.com)

Make sure you take a gander at the "Product Demonstration" link. It has 3 very informative video clips!

FPPF - TOTAL POWER FOR ME !!!! :exactly:

Click on the Sig to buy at a Great Price......;)

Why? As a relative newbie here, I want to use the best product, but I don't blindly follow the pack either. What is it about Power Service that is so bad? What is it about the others that is so good? I'm not trying to start a flame war here, I just need a little proof to mail order something over a product I can get at the local NAPA. Help me to understand why I need to buy the Standyne, or FPPF and I will. Sell me on this stuff and I'll buy it!

I share Timberwolf's curiousity.

You simply have to do your own test and see the difference for yourself. Like I said I used all of the above and I didn't notice anything, and I thought OK, what am I "supposed" to notice anyway.
Then for the heck of it I did the FPPF, and it "FELT" like it had more power. Could I be wrong - absolutely, but of all of them this one did something.
Problem with testing different products you have to use the stuff for weeks to really tell, and that gets expensive. I've tested them all over a period of 5 years, and ended up with what I did. Who knows someone else may like another product, or want to save a buck, or want to be able to buy the stuff at the corner store, each to his own, but only YOU can make this decision.

That reasoning is good, BUT Stanadyne is not reputed to make a very high quality product in most cases. In this case, Stanadyne Perf formula is a very good product, I just feel that the FPPF product is much better and a better cost/gallon treated too...
Kennedy, thanks for your response in this thread. There seems to be several happy users of FPPF Total Power. I would like to try it. However, since it is an emulsifier and GM specifically states not to use it will the FPPF company and their retailers stand behind their product and resolve any problem caused by an FPPF prduct like Amsoil does with their products?

Kennedy - I'm not locked in to a specific brand but any facts to back up your comment re Power Service?

Stanadyne for me. Nearly 30,000 miles for me and no probelms. Use it every fill up and hand calculated about 1-2 mpg's higher with its use. I buy in 5 gallon bucket at:
http://www.blueridgediesel.com/specials1.htm

No problems, so I will keep it up. 5 gallons will last about 40,000-45,000 miles!

Kennedy, thanks for your response in this thread. There seems to be several happy users of FPPF Total Power. I would like to try it. However, since it is an emulsifier and GM specifically states not to use it will the FPPF company and their retailers stand behind their product and resolve any problem caused by an FPPF prduct like Amsoil does with their products?
This is an old, old, issue and you need to read a LOT of posts dealing with this subject (LB7 forum) and then make up your own mind and either do nothing or choose between an emulsifier or de-emulsifier. No one is going to hold your hand and lead you through this jungle with a guarantee of any kind. Nor should they.

Consider this : the dealer & GM can/will look at the condition of your injection system if they are chasing a problem whether it be injectors, pump, return seals - whatever! If they see rust/corrosion or any evidence of what they consider bad fuel you stand a good chance of not meeting their Warranty conditions and you will pay for the necessary repairs out of your pocket. Read the old posts and you will see some pretty graphic examples of precisely this happening.

Check your fuel filter relief port for water before you do anything at all - NO WATER? OK - use a de-emulsifier for 6 months and periodically check for retained water. Still NO WATER? How come? One theory is that the agitaion while traveling and the constant return of excess fuel back to the fuel tank causes the water to become emulsified again and pass through the injection system causing the visable rust and corrosion to build up and present GM with a handy reason for denying warranty repair.

Yes, GM emphatically states that an emulsifier should not be used - however, remember that this is the same GM that designed/spec-ced the POS -:t poor performing fuel filter that they are now replacing (for FREE) with the two-pleat element for all LB7 and LLY units.

This is also the same GM that is replacing injectors (for FREE) for most of the units having injector failure. True, there is also the factor of poor/defective injector components breaking/cracking/whatever but the "bad fuel" factor is a real part of the total causitive equation.

Your task is to decide whether de-emulsifiying (dropping the water out) or emulsifying (encapsulating the water) is what you want to do. Many of we 1st Gen LB7 guys faced this quandry several years ago.

Yours is exactly the same kind of questioning we went through - it is now your turn - and you have the benefit of all our past discussions/arguments if you will review them.

It is a thorny issue so pop a beer and grab some peanuts, read and then make your informed decision and get past it.

Without a doubt you need to seriously consider using at least a lubricity enhancer since our diesel fuel is getting de-sulphered again this year.

Hope this helps a bit.

Bill Harvey

I checked out the Power Service products today while I was at WallyWorld. Both the silver bottle (Diesel Kleen) and the white (winter formula) bottle. They were the only additive products I have found among, Stanadyne Performance Formula, NAPA CRC, Howes, FPPF Fuel Power (found it at a truck stop along with Howes) and a STP diesel additive product that specifically states on the bottle, both white and silver, that it will NOT void the manufacturers warranty. Just thought that was interesting and would pass it along.