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07-14-2017, 09:33 AM
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#1
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Senior Member
Join Date: Sep 2012
Location: Palm Coast Florida
Posts: 12,995
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Diesel Fuel - how long before it goes bad?
I am storing my diesel truck and wondering how long before the diesel fuel goes bad? I do want to mention the truck is being stored in Florida. What effect will the heat have on the fuel? So far the truck has been in storage 3 weeks.
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07-14-2017, 09:43 AM
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#2
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,442
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Diesel fuel is very stable ,but I'd consider an additive with algaecide , particularly if your last fill was at a pump with a % of bio-diesel.
My coach regularly sits 5 months , with tank full, and no issues.
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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07-14-2017, 05:08 PM
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#4
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Senior Member
Join Date: Apr 2017
Location: Vista, Ca
Posts: 497
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My guess would be years in a sealed container or tank.
We have many fuel cells at work and some will sit many months between jobs. Never had a bad diesel issue on any of our machines.
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1992 Dodge D250, 18cm housing, getrag 5sp, 4" straight pipe
2015 Pacific Coachworks Sand sport 18SLE
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07-14-2017, 05:19 PM
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#5
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Senior Member
Fleetwood Owners Club Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 15,749
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Quote:
Originally Posted by Skip426
Diesel fuel is very stable ,but I'd consider an additive with algaecide , particularly if your last fill was at a pump with a % of bio-diesel.
My coach regularly sits 5 months , with tank full, and no issues.
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Agree.
It's not like gasoline where you need Stabil or similar.
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Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
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07-14-2017, 07:41 PM
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#6
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Moderator Emeritus
Join Date: Jun 2011
Location: HillBilly country, Smokey Mtns
Posts: 4,171
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Quote:
Originally Posted by tuffr2
I am storing my diesel truck and wondering how long before the diesel fuel goes bad? I do want to mention the truck is being stored in Florida.
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If you are positive that the fuel is dry as a powder and the fuel tank is full to the brim so there won't be any condensation from the humid air, then you won't need anything but a full tank for storage up to a year or so.
Quote:
What effect will the heat have on the fuel?
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Heat of the ambient air in Florida? No problem.
But the high humidity in the air in Florida means you must take precautions. Be sure to fill up the tank to the brim. Then use a portable fuel can to top it off after you park it in the storage lot. That will probably be all you need to do.
But even one drop of water (or condensation) in the fuel will cause algea to grow like gangbusters. So if stored in Florida I would also add a biocide or algaecide using something like this:
https://www.amazon.com/Power-Service.../dp/B005IUP9LC
The article MLiljen linked to is pretty good. Note it includes two diesel fuel additives by Sta-Bil - the same folks that make Sta-Bil for your lawn mower engine.
__________________
Grumpy ole man with over 60 years towing experience. Now my heaviest trailer is a 7'x16' 5,000-pound flatbed utility trailer, my tow vehicle is a 2019 F-150 Lariat 3.5L EcoBoost SuperCab with Max Tow (1,904 pounds payload capacity).
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07-14-2017, 07:53 PM
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#7
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Senior Member
Join Date: Feb 2009
Location: Hamilton, Indiana
Posts: 578
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Just FYI:
The military has an obvious interest in fuel storage, given what they do, so they've studied storage life of fuels pretty closely over the years. The key is keeping the fuel cool and keeping the fuel dry. Under ideal conditions, diesel fuel can be stored between six and twelve months. To extend the life past twelve months, even under the best conditions, it needs to be treated with fuel stabilizers and biocides. If the fuel can't be kept cool, below 70 degrees F consistently, twelve months is the longest reasonable estimate for storage. Keep in mind that this is for diesel fuel, not ethanol blends or biodiesel blends.
Higher heat, such as Florida, will require treatment to prevent algae formation, one it gets started in a tank algae will cause numerous problems such as plugging filters and injectors, very expensive repairs. Stabilizers and algaecides are cheap insurance against problems.
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USMC VETERAN
2017 Thor Windsport 29M
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07-14-2017, 11:48 PM
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#8
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Senior Member
Join Date: Jul 2015
Location: Currently; SW Cali. Sunny & warm!
Posts: 1,323
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Quote:
Originally Posted by Skip426
Diesel fuel is very stable ,but I'd consider an additive with algaecide , particularly if your last fill was at a pump with a % of bio-diesel.
My coach regularly sits 5 months , with tank full, and no issues.
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Thousands of snowbirds practice this technique during their annual migrations.
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J & J, DRV Suites ES-38RSSA #9679 GM Denali, 3500HD-Max, 4x CC, 8' DRW,
EZGo-TXT, Clubcar Precedent
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07-15-2017, 05:12 AM
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#9
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Senior Member
Join Date: Nov 2006
Location: Western NY
Posts: 6,149
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Careful w topping off tank too much. Fuel will expand w temp and overflow will be a mess.
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Don & Marge
'13 Newmar Ventana 3433 - '14 CR-V TOAD
'03 Winnebago Adventurer 31Y - SOLD
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07-15-2017, 08:02 PM
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#10
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Senior Member
Join Date: Sep 2012
Location: Palm Coast Florida
Posts: 12,995
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Thanks guys for the quick answers. I will only be storing the truck for 4 months so I am thinking I will be ok.
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09-07-2017, 07:43 PM
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#11
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Senior Member
Join Date: Sep 2012
Location: Palm Coast Florida
Posts: 12,995
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I picked up my truck yesterday, It started and ran like a top. The truck sat in the Florida heat all summer. I drove it 200 miles, stopped and added 12 gallons of fresh diesel. I will now be driving the truck until I trade it in on another tow vehicle, next year or the year after or the year after that... .
I figure in the next two months I will have cycled out most of the old diesel.
Again, thanks for the replies.
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09-07-2017, 07:49 PM
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#12
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Member
Join Date: Aug 2011
Location: Florida
Posts: 44
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Quote:
Originally Posted by soonerdave
Just FYI:
The military has an obvious interest in fuel storage, given what they do, so they've studied storage life of fuels pretty closely over the years. The key is keeping the fuel cool and keeping the fuel dry. Under ideal conditions, diesel fuel can be stored between six and twelve months. To extend the life past twelve months, even under the best conditions, it needs to be treated with fuel stabilizers and biocides. If the fuel can't be kept cool, below 70 degrees F consistently, twelve months is the longest reasonable estimate for storage. Keep in mind that this is for diesel fuel, not ethanol blends or biodiesel blends.
Higher heat, such as Florida, will require treatment to prevent algae formation, one it gets started in a tank algae will cause numerous problems such as plugging filters and injectors, very expensive repairs. Stabilizers and algaecides are cheap insurance against problems.
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What he said. Where I work we keep over 30K gallons in above ground storage tanks, in the Florida heat. We usually filter and treat it every six months, but we're dealing with life safety power generation, so we overkill on purpose. A decent treatment should do you fine, but be prepared to drain your fuel/water separator soon after driving it again.
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