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Find local restaurants, fast foods, that use friers and ask them how they dispose of their oil. More than likely, they pay to have it hauled off. See if they're willing to let you take it for free, but be prepared to do it regularly in order to keep the service.
I have two sources, a sit down restaurant that I supplied with two 55 gal drums with one foot square holes cut in the tops and expanded metal welded on so they can simply pour the oil in. I pump it out with a trash water pump when they get full. I've heard some use 300 gal containers.
The other source a is a Jack in the Box. They just pour the used oil back into the same jugs and I pick them up.
You want to make sure you're getting the right kind of oil. I get them mixed up, but believe non-hydrogenated. The oil that doesn't solidify at room temp. That's if you run it straight. If you're making bio-diesel, I don't thing it matters.
There are 3 or 4 guys here in Lubbock that have the market cornered on that stuff. They pay for it from every single restaurant in town. Even the hospitals and fire departments sell it to them. I looked into it before and it's just a waste of time. The restaurants are getting at least 2 bucks a gallon for it. I might look into just buying soybeans. I got an old oil press that hasn't been used since I was born at least and a tractor to run it. It's belt drive. It's in perfect shape though.
Wow, I heard it was getting hard to come by, but didn't think it would be that bad. And $2.00 a gal, they must be a commercial business that's turning it into bio. That seems a lot to pay just to do it for yourself. I know it will eventually happen here. I've heard on Oahu and Maui some are paying $0.25 a gal to the restraurants. I am starting to hord it just in case.
If you do manage to get a source, try a 50/50, dino/oil mix. That might keep it thin enough in the colder weather, still give you the horse power and mileage, and cut your fuel down.
I'm gonna fill my big tank 50-50 tomorrow. I just had a Dodge pass me on the shoulder this afternoon. I wanted to pass him and smoke him out and it just wouldn't do it. I should have had my son throw something at him when he did it. I was doing the speed limit!
For a homebrewer using WVO, it's very hard to meet ASTM standards for biodiesel. It's not impossible, but requires a lot more effort than most homebrewers expend. This is what I found out when I was doing research into biodiesel from WVO, and I decided that it wasn't worth the effort, especially when considering that fuel is cheaper than metal.
The best WVO is going to be Non-Hydrogenated as was stated above. It needs to stay as clear as possible at room temperature. The best oils are going to be found at Chinese restaurants, since you want oil that is clean and has not been used to fry a lot of meat (fat mixes with the oil and makes it less ideal to run). Around here, most of your chain restaurants are in contracts with companies to haul off their WVO, so that isn't an option. Smaller local places are going to be the best bet for me. Most of the places around here get less than $.50 a gallon for their WVO, so I will be paying for it, but it will still be a lot cheaper than $4.00 a gallon diesel.
For those interested, here's a pic of one of my oil heaters I built. This one is located just before the lift pump. I have a second one located under the truck just after the fuel selector valve and before an add on filter mounted on the frame. This keeps the oil warm going through the filter for easier flow.
I've also attached a diagram of the wiring schematic to make these work.
I live in Lubbock and have also had limited success in securing oil accounts. I do have a few but these came from knowing the owner or manager personally.
Most every restaurant we approach says that valley protiens pays them for their oil.
Have you had any luck lately? If you're still doing the veg oil thing, I'd like to collaborate with you to see if we pool our resources and get creative if we can get a few more folks to quit sending their oil and money to amarillo!
Not only can I Not get any veg oil, Biodiesel is harder and harder to find anywhere near detroit. so good luck. had lunch at a mcdonnalds the other day and this big ol box truck pulls up with 1-1/2" hoses, on board pumps, and strainers to pick up the used oil and stores it in big tanks. I dont know what their doing with it but it aint for biodiesel like i said I cant buy a drop. and I have to drive 20 minutes for B20.