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Re: HEY, Diesel Tech./mechanics
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: softcock</div><div class="ubbcode-body">Is it cool just to pour SeaFoam Diesel fuel cleaner direct into the fuel canister with filter, cap it off & then Run to clean Injectors ?
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I would actually use Power Systems in the fuel tank and if you have stiction get some Rev-X or Hot Shot Secrets. I wouldn't do a direct shot of it like that though.
Seafoam is ehh.. OK but not great.
What are you trying to accomplish? i.e. what makes you think your injectors are "dirty". Dirty injectors are kind of a misnomer. You're a lot more likely to see stiction on the oil side as opposed to a dirty fuel piezo which is highly unlikely due to the pressures involved. A HEUI injector will inject fuel at 36,000psi+ so if the piezo is dirty (blown) you will see fuel in the oil at first followed by a blown engine due to the constant leaking of fuel all of which is usually due to a bad copper gasket and not actually the piezo injector body. However, at this point I have no idea what type of injectors you have.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: softcock</div><div class="ubbcode-body">Is it cool just to pour SeaFoam Diesel fuel cleaner direct into the fuel canister with filter, cap it off & then Run to clean Injectors ?
. </div></div>
I would actually use Power Systems in the fuel tank and if you have stiction get some Rev-X or Hot Shot Secrets. I wouldn't do a direct shot of it like that though.
Seafoam is ehh.. OK but not great.
What are you trying to accomplish? i.e. what makes you think your injectors are "dirty". Dirty injectors are kind of a misnomer. You're a lot more likely to see stiction on the oil side as opposed to a dirty fuel piezo which is highly unlikely due to the pressures involved. A HEUI injector will inject fuel at 36,000psi+ so if the piezo is dirty (blown) you will see fuel in the oil at first followed by a blown engine due to the constant leaking of fuel all of which is usually due to a bad copper gasket and not actually the piezo injector body. However, at this point I have no idea what type of injectors you have.
Re: HEY, Diesel Tech./mechanics
running good injectors are good but I always periodically run a quart of Lucas thew the fuel tank since It's been driven . Only trying to just keep-up with cleaning & keep the pulse width spay nice and clean on the injectors .
Someone recently told me to just dump some Seafoam 50/50 in he canister and then let it run . but was NOT sure if that was to Much to ( Hot To Fast ) on the injectors ?
.
running good injectors are good but I always periodically run a quart of Lucas thew the fuel tank since It's been driven . Only trying to just keep-up with cleaning & keep the pulse width spay nice and clean on the injectors .
Someone recently told me to just dump some Seafoam 50/50 in he canister and then let it run . but was NOT sure if that was to Much to ( Hot To Fast ) on the injectors ?
.
Re: HEY, Diesel Tech./mechanics
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: softcock</div><div class="ubbcode-body">running good injectors are good but I always periodically run a quart of Lucas thew the fuel tank since It's been driven . Only trying to just keep-up with cleaning & keep the pulse width spay nice and clean on the injectors .
Someone recently told me to just dump some Seafoam 50/50 in he canister and then let it run . but was NOT sure if that was to Much to ( Hot To Fast ) on the injectors ?
. </div></div>
OK, yeah don't do that but it wouldn't be all that bad either. Just keep running what you're running through the fuel tank and you'll be OK. P.S. tests have shown that seafoam works but not as well as Power Service so swap to Power service. They're pretty much the same price/ounce so you might as well do a little better. Neither of these are the best products but I would say Power Service is the best bang for your buck.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: softcock</div><div class="ubbcode-body">running good injectors are good but I always periodically run a quart of Lucas thew the fuel tank since It's been driven . Only trying to just keep-up with cleaning & keep the pulse width spay nice and clean on the injectors .
Someone recently told me to just dump some Seafoam 50/50 in he canister and then let it run . but was NOT sure if that was to Much to ( Hot To Fast ) on the injectors ?
. </div></div>
OK, yeah don't do that but it wouldn't be all that bad either. Just keep running what you're running through the fuel tank and you'll be OK. P.S. tests have shown that seafoam works but not as well as Power Service so swap to Power service. They're pretty much the same price/ounce so you might as well do a little better. Neither of these are the best products but I would say Power Service is the best bang for your buck.
Re: HEY, Diesel Tech./mechanics
The tech that services our fire apparatus recommends the Stanadyne additives only but did say Power Service would be his second choice if he couldn't get the SD.
http://www.stanadyne.com/view.php?id=1
The tech that services our fire apparatus recommends the Stanadyne additives only but did say Power Service would be his second choice if he couldn't get the SD.
http://www.stanadyne.com/view.php?id=1
Re: HEY, Diesel Tech./mechanics
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: softcock</div><div class="ubbcode-body">Just OEM injectors . I will switch to power service . I been doing a quarts of Lucas since it was on the road (180-k+) right now.
what you think is the best product ?
. </div></div>
There are a lot of them out there I used to have a list that ranked the additive according to usefulness. I'll look for it.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: softcock</div><div class="ubbcode-body">Just OEM injectors . I will switch to power service . I been doing a quarts of Lucas since it was on the road (180-k+) right now.
what you think is the best product ?
. </div></div>
There are a lot of them out there I used to have a list that ranked the additive according to usefulness. I'll look for it.
Re: HEY, Diesel Tech./mechanics
Schaeffer's #137 Diesel Treat 2000, end of discussion...
http://www.schaefferoil.com/fuel_additives.html
Schaeffer's #137 Diesel Treat 2000, end of discussion...
http://www.schaefferoil.com/fuel_additives.html
Re: HEY, Diesel Tech./mechanics
Here is a little lesson on addatives right from the horses mouth. GM will void the warranty for some addatives.
Important: The use of diesel fuel additives is not required or recommended for the 6.5L diesel or the 6.6L Duramax® 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. GM Diesel Fuel Conditioner®, P/N 88861009 (in Canada, 88861038) is alcohol free and utilizes 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.
Common Diesel Fuel Concerns
Fuel Waxing/Icing
Fuel distributors blend #1 and #2 diesel fuels for seasonal requirements in a particular region. No other blending of fuels is recommended. However, a customer may desire to use a winter fuel additive to prevent fuel waxing or icing during extreme cold snaps. If a winter fuel additive is to be used, it should not contain alcohol or other water emulsifiers that may compromise the water removal effectiveness of the fuel filtering system.
Bacteria and Fungi Growth
Bacteria and fungi growth can occur in diesel fuel when there is water present, especially during warmer weather. The best prevention against bacteria and fungi growth is to use clean fuel that is free of water. There are diesel fuel biocides available that are designed to kill bacterial growth in the fuel system. However, the dead bacteria can still cause blockages throughout the fuel system. If bacterial growth is found in the fuel system, the proper method of removal is to flush the fuel system using Service Manual procedures, replace the fuel filter element and refill the tank with clean diesel fuel. If a customer desires to use a biocide after flushing the fuel system, it should not contain alcohol or other water emulsifiers.
Low Cetane Number
The cetane number is one indicator of a diesel fuel's ability to ignite. There are many indicators of overall fuel quality such as cleanliness, specific gravity, volatility, viscosity, detergency, corrosion inhibiting abilities, and lubricity. Increasing the cetane number alone is not a fix for poor quality fuel. Additionally, increasing the cetane number beyond the engine's requirements will not increase performance. However, the cetane number of diesel fuel is not always consistent and some customers may desire to use a cetane improver to ensure full performance of their engine. If such an additive is to be used, it must not contain alcohol or other water emulsifiers.
Poor Lubricity
The 6.5L diesel and the 6.6L Duramax® Diesel engines are designed to operate on today's low sulfur fuel without the use of additives. A fuel additive designed to increase lubricity is not a fix for poor quality or contaminated fuel, but some customers may desire to use a lubricity additive to aid in the longevity of their fuel system components. If such an additive is to be used, it must not contain alcohol or other water emulsifiers.
Fuel Source Issue
If a vehicle is properly maintained but has fuel contamination issues, consider obtaining fuel from a different source. Purchasing fuel from a high volume fuel retailer increases the chance that the fuel is fresh and of good quality.
Parts information
Part Number
Description
88861009
(in Canada, 88861038)
Conditioner, Diesel Fuel 325 ml (11 oz)
Here is a little lesson on addatives right from the horses mouth. GM will void the warranty for some addatives.
Important: The use of diesel fuel additives is not required or recommended for the 6.5L diesel or the 6.6L Duramax® 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. GM Diesel Fuel Conditioner®, P/N 88861009 (in Canada, 88861038) is alcohol free and utilizes 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.
Common Diesel Fuel Concerns
Fuel Waxing/Icing
Fuel distributors blend #1 and #2 diesel fuels for seasonal requirements in a particular region. No other blending of fuels is recommended. However, a customer may desire to use a winter fuel additive to prevent fuel waxing or icing during extreme cold snaps. If a winter fuel additive is to be used, it should not contain alcohol or other water emulsifiers that may compromise the water removal effectiveness of the fuel filtering system.
Bacteria and Fungi Growth
Bacteria and fungi growth can occur in diesel fuel when there is water present, especially during warmer weather. The best prevention against bacteria and fungi growth is to use clean fuel that is free of water. There are diesel fuel biocides available that are designed to kill bacterial growth in the fuel system. However, the dead bacteria can still cause blockages throughout the fuel system. If bacterial growth is found in the fuel system, the proper method of removal is to flush the fuel system using Service Manual procedures, replace the fuel filter element and refill the tank with clean diesel fuel. If a customer desires to use a biocide after flushing the fuel system, it should not contain alcohol or other water emulsifiers.
Low Cetane Number
The cetane number is one indicator of a diesel fuel's ability to ignite. There are many indicators of overall fuel quality such as cleanliness, specific gravity, volatility, viscosity, detergency, corrosion inhibiting abilities, and lubricity. Increasing the cetane number alone is not a fix for poor quality fuel. Additionally, increasing the cetane number beyond the engine's requirements will not increase performance. However, the cetane number of diesel fuel is not always consistent and some customers may desire to use a cetane improver to ensure full performance of their engine. If such an additive is to be used, it must not contain alcohol or other water emulsifiers.
Poor Lubricity
The 6.5L diesel and the 6.6L Duramax® Diesel engines are designed to operate on today's low sulfur fuel without the use of additives. A fuel additive designed to increase lubricity is not a fix for poor quality or contaminated fuel, but some customers may desire to use a lubricity additive to aid in the longevity of their fuel system components. If such an additive is to be used, it must not contain alcohol or other water emulsifiers.
Fuel Source Issue
If a vehicle is properly maintained but has fuel contamination issues, consider obtaining fuel from a different source. Purchasing fuel from a high volume fuel retailer increases the chance that the fuel is fresh and of good quality.
Parts information
Part Number
Description
88861009
(in Canada, 88861038)
Conditioner, Diesel Fuel 325 ml (11 oz)
