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New Formula for Diesel

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SouOre
Join Date: Apr 2007
Posts: 6 Oregon
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2007-04-08          141148


Has anyone had any problems with the "New Diesel" fuel in their tractors?
I have a friend who has had starting problems with his 2005 F-250 Power Stroke. He also has a TC33 I sold hime 2 years ago but he is still running on the old formula, (off road fuel).

SouOre




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hardwood
Join Date: Dec 2002
Posts: 3583 iowa
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2007-04-08          141171


SouOre; When your friend runs out of the old formula diesel, he will get the same fuel you get at the pump except for the red dye. I haven't heard of any starting problems with the new Low Sulfur fuel. The catch with the new LSD is that the sulfur provided lubrication for the injector pump and injectors that the fuel no longer provides, so it is important to add a Power Service, (my favorite), type addative year round to replace the lost lubricating qualitys the sulfur used to provide. Best to talk with your fuel supplier or the dealer who services your equipment, this is their bread and butter so they will do their best to keep you up to speed on things. Best of luck. Frank. ....


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greg_g
Join Date: Jan 2004
Posts: 1816 Western Kentucky
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2007-04-08          141172


I have heard some instances of clogged filters and injectors after switching to ULSD. Like biodiesel, it apparently has a secondary ability - that of cleaning fuel systems. Put into an unusually dirty tank, it can break up the deposits and carry them through the fuel system to the point where eventually something clogs up.

//greg// ....


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newholland10
Join Date: Feb 2008
Posts: 27 virginia
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2008-02-25          151661


i used to to work at a newholland dealership.service manager.i got bulliten from italy.talking about a microbe that lives and grows in off road fuel glogs fuel filter and injectors ....


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hardwood
Join Date: Dec 2002
Posts: 3583 iowa
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2008-02-25          151664


I think it is kind of a moss or fungus, kind of a green slimy goo, but that rarely happens unless you let fuel sit for a real long time before you used it. I'm not sure if the suppliers add anything to inhibit the stuff, but you can buy an additive to keep it down, I don't rembember what the additive is called, but someone here will. Frank. ....


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SouOre
Join Date: Apr 2007
Posts: 6 Oregon
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2008-02-25          151666


We call it the "Black Slime", it's a bacteria. In the past I have used a product to help eliminate it, "Bio-Con" but once you have it you can plan on changing a number of filters.
I met a guy in Arizona at a Flying J truck stop we were both filling up our motorhomes with diesel. He had 2, 250 gallon tanks. He told me the summer before, on his way to Alaska he had filled up at a little station and got the "Slime". Now 6 months later he was still having problems.
Hendo ....


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greg_g
Join Date: Jan 2004
Posts: 1816 Western Kentucky
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2008-02-25          151671


Quote:
Originally Posted by SouOre | view 141148
Has anyone had any problems with the "New Diesel" fuel in their tractors?
No problems with either tractor, guess they're not as fussy as my Mercedes. It don't like the ULSD at all.

But despite what the suppliers say about it being backward compatible, I still add Power Service for lubricity (and anti-gel in the winter) and am keeping a close eye on rubber seals and hoses. It's said the new stuff eats pre-2007 rubber.

That "black slime" stuff you're talking about is naturally occurring in diesel fuel. Generically referred to as "diesel bugs", the stuff comes from underground - and is not entirely removed during refining. It's a combination of bacteria, mold, microbes, and algae. Usually it remains inert in the fuel. But it can "wake up" and propagate in warm/moist conditions. It will show up as otherwise unexplained black/grey/dark green settlings in your sediment bowl. There may be water present as well. If/when that happens, use a biocide additive in the fuel tank. It's usually obtainable at ports - and at marinas that serve larger (diesel) boats.

//greg// ....


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texasfarmer
Join Date: Jun 2008
Posts: 3 Texas
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2008-06-29          154934


My 6 month old tractor is now in the shop getting the injector pump rebuilt probably thanks to the fuel.

A month ago after I filled up the tank, it started smoking and stalling out on me. The fuel system had gone airbound and the filters were plugged solid with raspberry jelly looking junk. Those filters only had about 10 hours on them and it was the third time I had changed them. It was 105 degrees outside and my tank was clean as a whistle before this. I was using off road diesel from a reputable supplier too. I've never had problems with it before but something got into their tank. It had to.

Now I have a field full of alfalfa ready to cut and bale and a field full of bermuda ready also and no tractor. It's only got 200 hours on it and I'm really ticked off at this. It took the dealership a month to decide to pull th epump off and have it rebuilt while I've been stuck here with a barely running tractor. It was running fine for a while then all of a sudden went to crap. Usually after I filled up each time. There is no more gel looking stuff in my system and everything is clean now but it's just barely able to get out of it's own way now.

I just hope it gets back real fast. My tractor payment depends on this cutting of hay and they know it. Everyone all the way up the chain of command in that company knows it. It was built after the switch to ULSD and was even made to run on B100 which costs 10 bucks a gallon down here. You would think it would be able to last more than 200 hours before trashing the pump.

Thankfully I haven't had any problems with my 97 F250 powerstroke. Yet. They have a good injection system on them. Of all the brands of diesel pickup engines I've worked on over the years the PS has been the most reliable. Mostly thanks to no injection pump to mess up.

FWIW, I have always kept power service in my transfer tank at the recommended amount as stated on the bottle. I have a filter on my pump and I've drained off the bottom of the tractor tank about every 2 months since I've owned it. This is just ridiculous considering how well I take care of my new tractor. ....


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Murf
Join Date: Dec 1999
Posts: 7249 Toronto Area, Ontario, Canada
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2008-06-30          154959


Quote:
Originally Posted by texasfarmer | view 154934
Of all the brands of diesel pickup engines I've worked on over the years the PS has been the most reliable. Mostly thanks to no injection pump to mess up.


Can you explain what you mean by that? Are you trying to say that the Navistar PowerStroke has no injection pump?

How would it run without a pump? ....


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