Fuel Additives

Use this forum for technical questions regarding tow vehicles.

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Mike Clay
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Re: Fuel Additives

Post by Mike Clay »

Well im here to tell you Rob if you are at a high altitude and your pulling or you just get on it you will see a lot of smoke compared to sea level. Not to mention you exhaust gas temps climb quicker at high altitude. The newer trucks with the dpf filter which is measured by soot mass climbs quicker when towing then when not its the nature of the beast . Watch a 18 wheeler pulling a hill you see more black smoke while under power.
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Re: Fuel Additives

Post by Rob & Cathy »

Interesting, do you think that's do to turbo lag?

Rob
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Re: Fuel Additives

Post by The-Bear »

Rob & Cathy wrote:If I'm not mistaken black smoke from a diesel is caused by the engine running to rich. With all the sensors on modern computer controlled engines I would think that new trucks would adjust the injection for altitude and the turbos should supply plenty of air.

Rob
That's for a clean engine. When the injectors get dirty, filters get dirty, or sensors quit working -- things don't work right.

Since my injector cleaning I've noticed that I have slightly more power (although that's hard to determine when not towing) and my mileage has gone up significantly -- that I can measure. Just around town I'm getting 2-4 mpg more. That's significant and tells me the injector cleaning thing isn't a myth or ploy to get more of my money.

I'll just have to see how much black smoke I blow the next time I tow the beast.

P.S. Mike -- I've got a 2004 GMC Sierra 2500 HD with 100,000 mi. on it now.
Woody & Sandy
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Rob & Cathy

Re: Fuel Additives

Post by Rob & Cathy »

The-Bear wrote:
Rob & Cathy wrote:If I'm not mistaken black smoke from a diesel is caused by the engine running to rich. With all the sensors on modern computer controlled engines I would think that new trucks would adjust the injection for altitude and the turbos should supply plenty of air.

Rob
That's for a clean engine. When the injectors get dirty, filters get dirty, or sensors quit working -- things don't work right.

Since my injector cleaning I've noticed that I have slightly more power (although that's hard to determine when not towing) and my mileage has gone up significantly -- that I can measure. Just around town I'm getting 2-4 mpg more. That's significant and tells me the injector cleaning thing isn't a myth or ploy to get more of my money.
Hi Woody

That's what I'm curious about whether black smoke on a modern diesel isn't a symptom of a problem.

Rob
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Re: Fuel Additives

Post by Mike Clay »

If you are calling modern 2008 or newer yes it could be a problem my o4 Dodge could hide you in a soot cloud at high altitude when it was new. My Chevy does not put out black smoke that i have seen but like i said it has the dpf filter if not it would smoke on a hard pull at higher altitudes not as bad as my 01 Dodge did but then again it had stage 3 injectors :oops: . You watch some of the pre 08 trucks in Yellowstone you will see them smoke on a hard pull. In fact im willing to bet casper will put out a cloud at times.
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surveyman

Re: Fuel Additives

Post by surveyman »

On my 06 Chev (43,000) I can put out the black smoke, just have to put your foot into it! Lots of good advice here and I will take a look at a couple of duramax sites and see what they recommend.
bfast54

Re: Fuel Additives

Post by bfast54 »

I have used the "power service" on and off, and tried the one that gaurentees no jelling, and I have not seen much difference, lately.


Now, before they went to this ULSD, I noticed a SLIGHT diff. when I used it..but no longer...........................for my view any way.
Rob & Cathy

Re: Fuel Additives

Post by Rob & Cathy »

Mike Clay wrote:Well I don't know rob. I sent the service manager an email telling him how I felt about it plus will see him this week for some other work.
Mike, I came across this while searching for cetane. Did you ever get a response back from your service manager regarding injector cleaning at 40K miles?

Rob
snoking

Re: Fuel Additives

Post by snoking »

Rob & Cathy wrote:
Mike Clay wrote:Well I don't know rob. I sent the service manager an email telling him how I felt about it plus will see him this week for some other work.
Mike, I came across this while searching for cetane. Did you ever get a response back from your service manager regarding injector cleaning at 40K miles?

Rob
Rob, the only additive I would put in the new Ford 6.7 is the one that Fords Parts department sells. And I would put it in every tank full! And I would keep my receipts in the grove box alone with a receipt for every gallon of diesel and where it came from. Ford, also claims B20 is ok, however I would not use B anything in it. CYA CYA CYA :thumbrt:

Chris
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Re: Fuel Additives

Post by Mike Clay »

I chose not to have it done since by using bio you really do not need to clean the injectors as much. Never did have any power or rough idling problems. Wont have it done at 40k on this truck either. Read up on the new engines Ford nor Chevy may want you using additives in the fuel.
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snoking

Re: Fuel Additives

Post by snoking »

Owners of new Ford 6.7's should check with their service manage to see if he wants you to run this!
http://www.fordparts.com/Products/Chemi ... aners.aspx
Rob & Cathy

Re: Fuel Additives

Post by Rob & Cathy »

When I bought the truck I was given some cetane booster by Ford and I've been using it at every fill-up. It says to add 4 oz to every 25 gallons.

Also, the last time I filled up was at a Shell station near home and the pump had a label stating the fuel had 5% bio-fuel. That surprised me.

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Re: Fuel Additives

Post by Samsbird »

I believe Ford does recommend an additive, Ford Chevy, VW,Audi all use the same injector pump now adays and probably would help to use the additive. I don't think the Ford pumps are anymore prone to fail then the next.

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Re: Fuel Additives

Post by Osborne »

Well,this is my 2 cents. Ford tech told me when a truck came in they would hold the throttle down almost wide open and blow them out. I add 2 cycle oil in my 2004 f250 and drive it like I stole it without any problems.
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Re: Fuel Additives

Post by gmarker »

I found a very interesting article in the Iliinois FarmWeek Newspaper on problems with the new diesel fuel. It is not just truck owners that are having the problems.

New regulations lead to diesel injector problems

By mark dehner Today’s diesel industry is very different from the past. New government regulations are pushing engine Original Equipment Manufacturers (oems) to meet extremely stringent emissions standards, while also reducing fuel consumption. These same regulations force fuel refiners and distributors to process and additize fuel more than ever before. These changes have created a perfect storm in the field, collectively affecting off-road, on-road, marine, and railroad diesel equipment owners. In order to meet the new regulations, engine manufacturers have implemented many new technologies. One of them, the high pressure common rail (hpcr) fuel system, includes a single fuel rail that is pressurized to injection pressures of up to 30,000 psi.

The injectors in this system are electronically actuated, meaning the fuel injection timing and duration is independently controlled by each injector. In order to improve fuel atomization and injection precision, these injectors are manufactured with much tighter tolerances than traditional injectors. Diesel fuel properties also have changed. With the introduction of Ultra Low Sulfur Diesel fuel (ulsd), particulates that were once soluble in previous fuels are beginning to cause problems. One particulate, called sodium carboxylic acid salt, is now traveling downstream and accumulating in fuel injectors. Since the new hpcr injectors have such tight tolerances, the deposits on the internal parts cause the injectors to react more slowly and even stick open or closed. The result of this sticky injector phenomenon is rough running engines, increased exhaust smoke, loss of power, difficult cold starts, reduced fuel economy, and increased emissions.

Sticky injector issues sometimes sneak up on operators and quietly rob power and fuel economy without being noticed until catastrophic problems occur. Replacement of fuel injectors can be expensive, not to mention the cost of downtime. Cases of injector failure in the field related to internal injector sticking are becoming more numerous. As more and more manufacturers use hpcr technology, the problem is expected to become even more common. Fuel additive companies already are working to provide solutions to this performance issue by upgrading detergency formulations to clean up the new sodium carboxylic acid salt deposits as well as the traditional carbon based deposits. If you have additional questions, ask your local fs energy specialist for more information.
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