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Cheap and Greasy Solution to Rising Gas Prices
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12-31-2007, 06:07 PM
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Veteran
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Join Date: May 2007
Vehicles: 03 Ranger(mostly), 07 Aveo(sometimes), 96 Taurus(occasionally), 01 saturn SL1 (rarely)
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Re: Cheap and Greasy Solution to Rising Gas Prices
Quote:
Originally Posted by SlowHands
My neighbor that has the snowplowing business that I drive for is going to be this route next year after he moves to his new place. All the trucks being considered for this are 2004 or older, so that gives him a little leeway. His front end loader and skid steer are pre-2000, so they are no problem.
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I don't know how your neighbor plans to deal with cold weather. From what I recall from being a short order cook in high school a lot of waste oil isn't exactly liquid at room temperature. Winter plowing doesn't sound like one of the easiest applications for grease fuel. From what I've heard straight biodiesel is better, but still has temperature issues.
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12-31-2007, 06:35 PM
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Senior Member
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Join Date: Nov 2007
Vehicles: Ford F-350
Location: Frozen Steppes Of Central Indiana
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Re: Cheap and Greasy Solution to Rising Gas Prices
This sounds good but the reality is that there really isn't that much cheap waste cooking oil out there. A town of 15,000 with a number of greaseburger places might be hard pressed to produce 100 gallons of such grease a week.
Also biodiesel homebrewers are paying restauranteurs for their grease now, so cheap grease is a thing of the past.
It does work OK with old style mechanical injection in the summer. You have to heat the grease to get it to flow. Start your engine on dino-diesel. Once the grease tank warms up, you switch over. Before you shut down, you go back on dino-diesel to purge the grease out of the fuel system so you can start it later.
Looks to me like converting grease to bio-diesel would be a lot easier.
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12-31-2007, 07:04 PM
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PZEV, there's nothing like it :)
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Join Date: Feb 2006
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Re: Cheap and Greasy Solution to Rising Gas Prices
Hi Big Dave:
___Except with the caveat Mike brought up in an earlier post. The new high pressure common rails coming down the pike are not meant to run any Bio or grease mixtures for some reason. The warning includes the injectors but there was something else about the cylinders, crank case, exhaust and after treatment. I will try and get this nailed down with more details in Detroit early next month during a private get together with the VW/Audi reps the first night of NAIAS 2008.
___Good Luck
___Wayne
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12-31-2007, 10:48 PM
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Re: Cheap and Greasy Solution to Rising Gas Prices
I found some more information on what happens in the crankcase. Apparently, small amounts of the WVO can get by the rings and mix with the engine oil. After a while, heat can cause the vegetable oil can polymerize into a gooey mess, which would certainly not be good for any engine parts. Monitoring oil and shorter oil change intervals are important in keeping a vegetable oil fueled engine running properly. Here are a couple pictures of some very polymerized oil in a crankcase from vegetable oil. I don't know the history on how long vegetable oil was run or how the vehicle was maintained.
And valves from a 1.9 TDI with about 80k miles, 50k or which were on WVO.
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Regards,
Mike S.
 
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01-01-2008, 02:37 AM
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Junior Member
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Re: Cheap and Greasy Solution to Rising Gas Prices
gelling and crust that engine will run great. My coworker runs b20 I wonder what his engine looks like.
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Diesel or Hybrid? I don't want to choose!
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01-01-2008, 03:00 AM
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PZEV, there's nothing like it :)
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Join Date: Feb 2006
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Re: Cheap and Greasy Solution to Rising Gas Prices
Hi Mike:
___Holy $@$*, those valves and whatever is sitting in that pan looks wicked! Note to self, Veggie oil will never be placed into a modern Diesel I will ever have the chance to drive!
___Good Luck
___Wayne
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01-01-2008, 03:52 AM
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Penguin of Notagascar
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Re: Cheap and Greasy Solution to Rising Gas Prices
No kidding. That stuff is scary!
Where did you find those photos, Mike??
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I'm a slow driver with a FASed car! 
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01-01-2008, 05:51 AM
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Hypermiling Ironman
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Re: Cheap and Greasy Solution to Rising Gas Prices
I don't know all the particulars of the kit that he is getting, but I do know that he is talking about ending up with a mixture of about 50/50 dino-veg oil. I'll show him the pics...
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01-01-2008, 04:43 PM
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Veteran
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Location: Winnipeg, Manitoba
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Re: Cheap and Greasy Solution to Rising Gas Prices
The ugly valves came from WVO no more-My Tragic Greaser Story on TDIClub. His cams were scarred, which doesn't seem to happen on those engines unless an improper engine oil is used. He could have had some polymerization from the veggie oil which affected lubrication, leading to that damage. He also has some serious turbo and piston damage but I don't think that's related to the vegetable oil.
The black goo is from a German website that discusses the TDI engine. The pictures come up on occasion on TDIClub when somebody asks about running a modern direct injection engine on vegetable oil.
http://fatty-fuels.ubitco.de/TDI-Pro...#_Toc116102110
koreberg, if your co-worker is getting good fuel, he shouldn't have much to worry about. I don't see many problems cropping up, even from people who have run B100. I would look for fuel meeting ASTM D6751 when purchasing biodiesel so that I know the fuel at least meets some specification in some way. Biodiesel and vegetable oil are completely different animals when it comes to what they can do to an engine.
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Regards,
Mike S.
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