Tip & How-To about Kitchen Appliances - Others

How To Convert Vegetable Oil Into High-Grade Biodiesel Fuel

This tip will help you learn how to convert new or used vegetable oil into high-grade biodiesel fuel that can run in a standard diesel engine. Anybody can make biodiesel. It's easy, you can make it in your kitchen -- and it's better fuel than the petro-diesel the oil companies sell you. Your diesel motor will run better and last longer on your home-made fuel, and it's much cleaner -- better for the environment and better for health.

Biodiesel has some clear advantages over straight vegetable oil, or SVO:

  • It works in any diesel, without any conversion or modifications to the engine or the fuel system -- just put it in and go.
  • It also has better cold-weather properties than SVO (but not as good as petro-diesel).
  • Unlike SVO, it's backed by many long-term tests in many countries, including millions of miles on the road.
Biodiesel is a clean, safe, ready-to-use, alternative fuel, whereas it's fair to say that many SVO systems are still experimental and need further development.


  1. Purchase a Biodiesel Processor, such as the Fuelmeister II Biodiesel Processor available here.
  2. Follow the included instructions and you will be on your way to creating your own Biodiesel fuel!

Biodiesel is made from vegetable and animal oils and fats, or triglycerides. Biodiesel cannot be made from any other kinds of oil (such as used engine oil).

Chemically, triglycerides consist of three long-chain fatty acid molecules joined by a glycerine molecule. The biodiesel process uses a catalyst (lye) to break off the glycerine molecule and combine each of the three fatty-acid chains with a molecule of methanol, creating mono-alkyl esters, or Fatty Acid Methyl Esters (FAME) -- biodiesel. The glycerine sinks to the bottom and is removed.

The process is called transesterification.

System Includes:
  • Processor Tank and Stand
  • Pump Assembly
  • Oil Drawtube Kit
  • Oil Titration Field Test Kit
  • Operator Safety Kit


  • Biodiesel Output: 43:5 gallons (max) per batch
  • Mix Rate: 330 gallons per hour
  • Operator: 1 1/2 hour per batch (typical)
  • Tank Material: Chemical grade polyethylene
  • Tank Stands: Welded steel frame with levelers
  • Plumbing Materials: Chemical grade steel valves
  • Processor Capacity: 55 gallons (maximum)
  • Processor Size: 54" high x 26" diameter
  • Footprint: Set up in a 30" x 30" space
  • Shipping Weight Processor: 98 lbs.
  • Shipping Weight Pump Assembly: 27 lbs.

Other Features:
  • Handles most used vegetable oils
  • Makes 2-40 gallon batches in 24 hours
  • Industrial-grade materials
  • Easy draining cone-bottom tanks
  • 90 minutes hands-on time after understanding the system
  • Turbine pump blends and mixes
  • Full-draining single tank system
  • Special Modular Direct Catalyst Injection Lid (Patent Pending)
  • Steel Methanol Pump
  • Quick disconnect hose fittings throughout
  • NEMA box with Solid-State control timer
  • Steel valves No thru-tank ports
  • Interchangeable Lid System
  • Large diameter glycerol drain hose
  • 30" x 30" footprint, very compact
  • Platform allows for modular upgrades

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1 Answer

will this diesel run on biodiesel.

Ira, Depending on your vehicle, some modifications may have to be made, it use to be all diesel engines could, now with the new injection systems they say you have to be careful of contaminating engine oil, and emission problems. It seems in newer diesels, the Bio fuel does not vaporize as well and contaminates oil. Check the attached links,instruction and guides, last link may list your engines compatibility. Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
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Apr 15, 2016 | Cars & Trucks

2 Answers

how can i convert diesel to vegetal oil and where can i get the filers?

There is plenty data on the internet just Google it . There are plenty of clubs around get some advice before you do this.

Jul 28, 2014 | 1983 Mercedes-Benz 300-Class

2 Answers

can i use biodiesel in a 1.4 tdci ford fusion

when mr deisel invented the engine he used peanut oil (diesel fuel wasnt invented)you can use biodiesel in any diesel engine although the makers(ford etc)will tell you NO(they dont want any warranty problems).
the only downside is biodiesel will clean lines/tank and any free floating bits will clog filters.some fuel lines will need to be changed {LOOK UNDER BIODIESEL IN HAWAII) marine engines in the islands use only biodiesel as it is NOT poisonous to marine life.

Feb 26, 2010 | 2005 Ford Fusion

2 Answers

diesel auto to petrol manual

I think that you can buy another car for what it would take to do that conversion.

Lets' see off the top of my head.
new heads to accept spark plugs?
new body control module
new engine control module

then keep in mind that even with all the above it still might not work because you may need proprietary parts only made for a gas engine, and you have a diesel. An engine swap may be doable but I ahve never heard of it working out in the end.

Oct 01, 2009 | 1991 Nissan 240SX

1 Answer

84 Mercedes 300

When you say 'biodiesel' do you mean true bio that is a mixed product or a combination of vege oil/diesel or pure vege oil? What is your daily air temp? Pure vege and even some combos with a high percentage of vege will thicken up in your injector pump, lines and injectors. If you're in a cold climate, I suggest moving the vehicle into a garage (preferrably heated) warm the car up as much as possible, using a tarp and heaters if nescessary. (Don't start a fire!) There also is a bolt on top of the water seperator (looks like a spin on oil filter in front of the engine) that you can loosen while you crank the engine until fuel comes out of the bolt hole. This removes any air trapped in the line. Hopefully you filled the H2O seperator with diesel prior to reinstalling it.Don't forget to add regular diesel to the fuel tank to thin out the vege, if that's where you put it. If you think that the mechanical fuel pump is giving up the ghost, I suggest trying an inline fuel pump from an early '90s Chevy diesel. It's electric and can be placed on the firewall near the inline filter, just bypass the mechanical and give it a battery source that is keyed.

Feb 05, 2009 | 1985 Mercedes-Benz 300

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