Old fuel
Laughing Gas
Joined: May 2005
Posts: 1,082
Likes: 1
From: Illinois
Not the most politically correct solution but I use old fuel (usually a few gallons a year in volume) and pour it on my gravel driveway where the foliage is starting to grow back. My driveway is a little over 400 feet so it is dispersed over a large area. I don't think the ecology or any animals are harmed in this scenario.
Posting Guru
Joined: Aug 2006
Posts: 1,049
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From: Perry Georgia
I bought a 1986 trooper that had set for 6 years back in 2004. All I did was put a battery in and with fuel that was 6 years old, turned the key and she started right up. If your unsure, add it slowly but with the cost of Diesel, I wouldn't throw it away
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Cargo Master
Joined: Jul 2008
Posts: 2,565
Likes: 53
I ended up giving it to a farmer for his self propelled sprayer. That made short work out of it.
I thought about mixing it in with fresh fuel in my tank but I didn't want to run it through the engine and all the filters. It was about 10 months old and I figured it wouldn't be good. My co-workers didn't seem to bat an eye at it when I was asking them what to do with it. They both said they'd take it if their trucks were close. We ended up just letting the farmer throw it in his tank, after all farm diesel is LSD and the engines can take harder use than the new ULSD-only on-roads with all the emissions stuff.
I thought about mixing it in with fresh fuel in my tank but I didn't want to run it through the engine and all the filters. It was about 10 months old and I figured it wouldn't be good. My co-workers didn't seem to bat an eye at it when I was asking them what to do with it. They both said they'd take it if their trucks were close. We ended up just letting the farmer throw it in his tank, after all farm diesel is LSD and the engines can take harder use than the new ULSD-only on-roads with all the emissions stuff.
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Tuned
Joined: Oct 2004
Posts: 442
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From: reno nevada
old fuel
At work we have fuel for out diesel generators thats been in the tank for 10 years or more. Its been treated once or twice but still runs fine when we test the generators monthly.
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Posting Guru
Joined: Nov 2007
Posts: 2,158
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From: West Texas
Farm diesel hasn't been LSD in several years now. Throughout the country. Lots of farmers still think it is but it isn't. Our distributor still tells me it is too but I called the company he gets it from. They said it's not and the law in texas had it phased out 3 years ago.
I would have used 10 month old fuel in anything but since I usually get bio diesel now I wouldn't use it past 6 months. The stuff in my farm tank now is that old and the tractor is running like crap on it. It's running perfect on fresh bio. I usually spray stuff like that in my driveway too or use it in the sprayer as a sticker. Helps make chemicals stick to weeds.
I would have used 10 month old fuel in anything but since I usually get bio diesel now I wouldn't use it past 6 months. The stuff in my farm tank now is that old and the tractor is running like crap on it. It's running perfect on fresh bio. I usually spray stuff like that in my driveway too or use it in the sprayer as a sticker. Helps make chemicals stick to weeds.
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Joined: Aug 2006
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From: Perry Georgia
Back when I was making my own biodiesel I didn't think twice about using old biodiesel. I didn't let it set in the fuel tank of the vehicle I"m driving for long as I used it driving it dailly. It does continues to settle out the glycerin for a long time. I mixed a batch for a guy I borrowed some but after 2 years I couldn't contact him and needed the barrel so I poured it into the fuel tank and it didn't miss at all. I do know if you put it in a vehicle or something that sits for long periods of time it will continue to settle out and yes it will gum up the filters.
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Joined: Nov 2007
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From: West Texas
My tractor was weird and I don't know exactly why. At PTO speed it was cutting out pretty bad on the old bio in it. We've had a bad drought going on for about 10 months now and it's been used so infrequently because nothing is growing that the fuel in the tank must have settled out like you say. Just topping it off with some regular diesel cured the cutting out problem. It was commercially made soybean B100 in it. Not sure if I'll ever buy any from that company again though. They recently switched to chicken fat and it's not running very well in their own vehicles. Their kubota tractors and engines are running rough and their 6.0 l f360 is about to cost them a fortune I think with it.
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