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05-29-2009, 10:26 AM
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#1
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Junior Member
Join Date: Jul 2008
Posts: 16
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Diesel algae problem
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05-29-2009, 03:49 PM
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#2
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Senior Member
Workhorse Chassis Owner
Join Date: Jan 2002
Location: Pacific Northwest or SoCal
Posts: 3,035
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I don't want to sound harsh, the problem with algie and water are very well know problems with diesel fuel.
You need to keep close tabs on a diesel fuel system.
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Fred and Bonnie
2005 Dolphin LX 6375
Abby, Ruffles & Scarlett, "The Cats"
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05-30-2009, 03:01 AM
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#3
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Moderator Emeritus
Country Coach Owners Club Appalachian Campers Gulf Streamers Club
Join Date: Mar 2000
Location: Chattanooga, Tn.
Posts: 12,060
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Keeping the fuel fresh and the tank full is the best. Next would be to use something like Algae-X. They also make filter systems that will clean the fuel.
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Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7
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05-30-2009, 09:06 AM
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#4
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Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,671
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I've never heard of algae harming a lift pump either, but I suppose it is possible of some of the crud gets through the filter. Algae clogs the filter quickly, but that's what filters are for. The opre-filter will get clogged too, but the secondary hopefully stays ok.
And most coaches already have a pre-filter. There was a period of about 18 months where Freightliner was installing only one filter (roughly 2003 thru 2004) with permission form Cummins, but they went back to a pre-filter + final filter combo after problems arose. I have one of the single filter coaches but have never had a problem. I do use an algaecide when the coach sits for awhile, but don't bother when I am runing it regularly and keeping things stirred up.
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Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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05-30-2009, 02:33 PM
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#5
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Senior Member
Join Date: Nov 2006
Location: Grayson, GA
Posts: 905
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I am wondering if the problem is algae or just the crud that the new diesel "cuts" lose from the tank and the fuel lines -- lots of problems with that due to the new Ultra low diesel. I installed a dual filter system on my MH just because of that problem. I also use an additive with about every other fill to help with any moisture and algae problems. After two fill ups with the new diesel and after the new filter system installed, the "pre-filter" had to be changed due to clogging up with the "crud." changed out both filters at the same time just to be careful. The dual filter set up cost right at $500.00 at Cummins South and included the re-routing of fuel lines, wiring in the new sensor, mounts, both new filters, and labor.
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Dave and Karen -- '02 Ultimate Advantage 36 C, 350 HP Cummins, Allison 3060 Tranny, 2013 Ford Edge, InvisiBrake
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06-03-2009, 11:06 AM
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#6
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Senior Member
Join Date: Jan 2008
Location: Big Bear Lake, Ca
Posts: 915
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Diesel fuel is a fraction of crude oil that is wet as is Jet A. The removal of sulfur would not effect microbial life. Algae growth in wet fuels is common and has been known forever. The use of diesel additives that inhibit microbial growth is also a very old practice. Proper filter maintenance and the use of a quality fuel additive should eliminate algae problems. Buying from high volume sources is also recommended.
BTW there two sources of petroleum based diesel. Diesel based on high paraffinic crude, high gravity, has a yellow sweet smelling appearance and normally has a high cetane number. Diesel based on low gravity crudes are root beer colored and usually a fowl smell, they have been cracked, and require cetane improvers to meet specifications.
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2004 CRV TOAD/1990 WRANGLER TOAD ROCK BUILT
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