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Old 03-19-2015, 02:56 PM   #1
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Add or not add diesel additives

Tried searching this subject but nothing came up here !
For our Damon/Astoria/Pacific 36ft Cummins Freightliner 350 hp DP
Experiences or just opinions on adding ANY BRAND DIESEL ADDITIVES to Fuel and How Often ?
Many additives on market, so simply asking if they are needed or experience with just plain any additives.
Ive some research and asking the guy next to me in a few Nevada Bars, I have started using Stanadyne year-round additive in every other tank of #2 Diesel. So as to get ahead of any "GEL" problems.
No records from the owner we bought from, as he recently passed away and wife unsure of any maintenance records on file.
Talking to Cummins Freightliner Warranty is a useless and time wasted effort.
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Old 03-19-2015, 04:28 PM   #2
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With over 60 years of diesel engines in my family, we have never used any kind of additives, just good clean,#2 fuel.........then LSD.........now......ULSD. not one fuel problem over all them years..........Lucky?
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Old 03-19-2015, 04:39 PM   #3
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I use Stanadyne every fueling and have for more years than I want to count.
Not having any control over the fuel one purchases being a major reason.
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Old 03-19-2015, 04:47 PM   #4
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Add or not add diesel additives

Not sure how many diesels I have but 15 or so. Have several stationary motors on pumps & tractors, pick-ups & RV. All some form of farm equipment except the RV.

Have never used any additives. Now we do not run our equipment in extreme cold with the exception of the pick-ups.

Any fuel for the pick-ups is purchased at stations and should have winter blend in it.

Years ago when we ran some below zero temps we just run a gallon of gas in 40 gallon of diesel. Ha. Don't do that with these computer motors. I don't think there be any "gel" issue till you get somewhere near zero??

They sell the additive at the truck stops so I guess it not hurt anything. I've never had any motor issues except just old age. So I don't plan to start using it now ??

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Old 03-19-2015, 04:58 PM   #5
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I feel that diesel additives are like black tank additives. Just a waste of $$.
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Old 03-19-2015, 05:01 PM   #6
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Quote:
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I feel that diesel additives are like black tank additives. Just a waste of $$.
A interesting perspective, I never thought of..........I use nothing in my tanks also.......other than lots of water........just a squirt of dawn liquid soap from time to time......
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Old 03-19-2015, 05:14 PM   #7
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Our 04 Cummins is pre-ULSD so we always added something for lubrication every 100gal. At around $350 - $400 for the fuel & $4.95 for the additive .....why not?

Would never store a diesel without a biocide.....why take the risk for another $8.95?
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Old 03-19-2015, 05:23 PM   #8
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Our 04 Cummins is pre-ULSD so we always added something for lubrication every 100gal. At around $350 - $400 for the fuel & $4.95 for the additive .....why not?

Would never store a diesel without a biocide.....why take the risk for another $8.95?
The Refinery where I work Jack, adds additives to the USLD for the loss of lubricity(alone with other additives) that was lost due to the sulfur being lowered to 15ppm as I believe they all do........add more if you like though.......... as far as biocide........I have never had a water in fuel problem..........Bacteria does not live in fuel, needs water..........http://www.mycleandiesel.com/pages/P...ialGrowth.aspx
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Old 03-19-2015, 05:34 PM   #9
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In my part of the country algae will form in the tank, while in storage, in hot humid weather if additives are not used. I have had algae start when I "thought" the tank was full. Running I don't use anything except fresh fuel.
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Old 03-19-2015, 05:37 PM   #10
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In my part of the country algae will form in the tank, while in storage, in hot humid weather if additives are not used. I have had algae start when I "thought" the tank was full. Running I don't use anything except fresh fuel.
Hi Chuck,
MICROBIAL GROWTH vs. ALGAE
Microbial colonies, sometimes incorrectly referred to as algae, are actually bacteria or fungus. Algae needs light to live and grow, there is no sunlight in a closed fuel tank so algae cannot survive.
Bacteria in Diesel Fuel - Diesel Engine Problems - MyCleanDiesel.com
When sitting, the key factor is to have a "Full" tank......no room for nothing else.......
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Old 03-19-2015, 06:07 PM   #11
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Quote:
Originally Posted by palehorse89 View Post
Hi Chuck,
MICROBIAL GROWTH vs. ALGAE
Microbial colonies, sometimes incorrectly referred to as algae, are actually bacteria or fungus. Algae needs light to live and grow, there is no sunlight in a closed fuel tank so algae cannot survive.
Bacteria in Diesel Fuel - Diesel Engine Problems - MyCleanDiesel.com
When sitting, the key factor is to have a "Full" tank......no room for nothing else.......
We went through a very frustrating and expensive ordeal with this problem, back around 2011. We have a 10,000 gal storage tank that got a bad case of microbes or whatever you want to call it. It is like a virus and can spread to everything. It reaked havoc on several later model injection pumps. The older machines just coughed a little until the fuel filter loaded up and needed replaced. We spents thousands in repairs and disinfection. We now use a biocide treatment in all our storage and transfer tanks.
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Old 03-19-2015, 06:40 PM   #12
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A big NO NEVER

I just make sure I refuel my truck at a station that sells a lot of fuel like a truck stop...A friend of mine is a retired UPS fleet maintenance manager and he knows more about Cummins diesel engines then anyone I know of...He told me never put anything in my tank other then fresh fuel...
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Old 03-20-2015, 10:42 AM   #13
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We went through a very frustrating and expensive ordeal with this problem, back around 2011. We have a 10,000 gal storage tank that got a bad case of microbes or whatever you want to call it. It is like a virus and can spread to everything. It reaked havoc on several later model injection pumps. The older machines just coughed a little until the fuel filter loaded up and needed replaced. We spents thousands in repairs and disinfection. We now use a biocide treatment in all our storage and transfer tanks.
A problem like that Scott, would be enough to make someone start using something.........
We were lucky, we never had a problem in our underground tanks over the years.........
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Old 03-20-2015, 11:05 AM   #14
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I have never added any type of additive to any of my diesels over the years.
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