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Old 11-13-2006, 02:56 PM   #41
rickfox
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Skip,

Thanks, I will.
 
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Old 11-13-2006, 04:57 PM   #42
dsprik
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I'm buying the $15.20 Diesel Kleen, too. It'a the cheapest additive I've found so far. Also a big plus is availability - any Walmart...
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Old 11-14-2006, 04:05 AM   #43
Bob Pasternak
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Stopped at a Cummins engine shop yesterday and asked about additives. They said none are needed on '04, '05 & '06. Also, 5% maximum on biodiesel. I didn't ask about prior years.
Did pick up a Cummins "Powermasters Road Club" mag. Sometime in '07 they're raising the displacement on the 5.9L to 6.7. It will have three power/torque settings: ISL= 365/1250, ISC= 330/1000, and ISB=325/750. Also going to 18 qt. oil pan and 20,000 mi. oil change. I would have like to have an engine like that back in the 50's when I started driveing truck.
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Old 11-16-2006, 08:55 AM   #44
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Well having read everything here I decided to visit the refinery I spent 37 years at to find out what kind of cetane the new diesel that they are making is and was glad to find that it is running between 47.4 and 47.9.Hope this is standard for other refineries.
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Old 11-16-2006, 12:56 PM   #45
RMccord
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I received an email reply from Stanadyne today regarding thier products and the ULSD fuels. They can be reached at 860-525-0821. They have modified slightly thier formulas for the new fuel but said that their products are excellent additives for the new fuel. I like Stanadyne products as their business is to quote "the development and manufacturing of innovative diesel fuel systems, components, fuel additives and support products, the Precision Products & Technologies Group provides a wide range of products and services to support engine manufacturers and users."
They are the only approved additive GM acknkowledges. No I dont work for them but I do use their Stanadyne Performance Formula and just ordered another 4 bottles worth of it to treat 1000 gallons. I have used it since I bought my GM in 2005 and it has been in all but 4=5 tanks of fuel in my truck.
They also sent me some information and said that they have been getting allot of inquires by worried consumers over the new fuel. Mainly due to being miss informed. On that I do not know.

Just a contact number if you wish to investigate SPF for yourself
also at
www.stanadyne.com
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Old 11-17-2006, 03:25 AM   #46
Amps
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Yesterday I sent an email to Cummins for their input on this ULSD diesel fuel.
My question was: Here in Canada I use Petro Canada as my fuel supplier and their web site says that I DO NOT NEED to add anything to their fuel as it meets all engine requirements. Are they correct or do I need additives/booster?: Following is Cummins reply.

Summary: ULSD

Solution:
Thanks for your Email message.

Petro is correct; The fuel needs no additives.

There are many rumors circulating about the effects of sulfur being in
diesel fuel or sulfur being taken out of diesel fuel. Diesel fuel
without sulfur is just as good, in all respects except one, when compared
with today's fuels with sulfur.

Diesel fuel, in the United States, must meet a lubricity standard. The
producers adjust the lubricity before they distribute the fuel. No
further additives are needed to ensure proper fuel system lubrication.

The only negative effect of taking sulfur out of fuel is that the fuel
becomes more expensive, somewhat negating the inherent cost advantage
of running diesel engines when compared to other fuels. As we are
certain you know, sulfur doesn't jump out of the fuel on command. It has to
be removed using specialized equipment and chemical processes that add
to the expense of producing the fuel.

We have seen a very few instances where the reduced aromatic content of
the fuel has resulted in slight leaks from fuel systems. This is not
expected to be an issue with many engines.

Basically the change to new fuel should be pretty easy for folks with
the engines built prior to 2007 and for customers with the engines built
in 2007 it will be necessary, for the short time it takes fuel stations
to consume the remainder of the old fuel (maybe a month or two), to be
certain they are not fueling with the older fuel.

There is an effect on diesel engines from the use of low or no sulfur
fuel which we expect to be positive. The blowby gasses that normally
pass through the engine crankcase will contain less or none of the
chemically reactive sulfur and its compounds. This will tend to keep the
engine oil cleaner during operation and allow important engine components
like bushings, bearings and piston rings to live longer.

Diesel fuels containing sulfur or no sulfur each have the same specific
heat, about 20,000 BTUs per pound. For that reason they give the same
amounts of work for the same amount of fuel. That means the fuel
economy per gallon will not be affected.

Over the years we have seen fuel economy decrease, somewhat, as diesel
engine designs have been modified to meet the lower NOX limits imposed
by government. This has been totally unrelated to sulfur in the fuel.

With lower sulfur fuels it is possible that some exhaust after
treatment devices (catalytic converters) may be used to better effect, making
it possible to further decrease harmful exhaust emissions.

If you use diesel fuel that does not meet the new federal low sulfur
requirements that are going into effect for 2007, in a 2007 vehicle that
requires the new fuel, it will produce particulate matter that will
cause rapid plugging of the exhaust particulate trap. We don't anticipate
producing engines for such vehicles until 2007.

We thank you for your interest in Cummins products. If we have
misunderstood your question and not answered it, please reply with further
inquiry.
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Old 11-17-2006, 04:24 PM   #47
Russ and Sandy
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Interesting. thanks for posting it. Do you suppose it will be the last word on the subject???
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Old 11-18-2006, 09:39 AM   #48
Amps
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No, I don't think this will be the last word on this subject.
Actually I think the main question is 'who do you trust the most'.
I will say that Cummins (in my case) is better qualified than my truck dealer after all they build my engine.
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Old 11-18-2006, 02:46 PM   #49
JimF
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Thanks for that post, AMPS, I also run a Cummings. Mine is an 01 and I have noticed a decrease in MPG over the past few months. I went to a centane boost and have recovered the lost MPG and the lost performance that went with it. I hope Cummings is correct, but I have reservations to some degree. My research by ASTM specification indicates that the new fuel does not meet the same energy standard, approximately 39 centane to the old standard 40 to 45. The lubricants are, by standard, to be put in the fuel by the supplier. Can you trust them to add cost to the fuel?? Don't know, hope so, but suspect.
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