Biodiesel is an environment-friendly diesel that comes from vegetable oil and diesel combination.
It makes your engine work efficiently and does not harm the air you breath.
Cost wise, biodiesel is quite cheaper as compared with the actual diesel.
Because it is less costly, how do you think if you will learn how to make biodiesel yourself? Of course, learning how to make biodiesel may take sometime.
However, based on testimonies of people who actually make biodiesel, it is actually simple.
Of course, patience is necessary including safety precautions but in general making biodiesel is easier than you think.
What you will need to make biodiesel?

• 1 liter of supermarket vegetable oil.
  Of course, you can use used oil later but in your first few batches, it is recommended that you use new vegetable oil.
  
• 200 ml of pure methanol.
  Pure methanol means 99% pure at the minimum check the label when you buy your methanol.
  
• Lye catalyst, use potassium hydroxide.
  
• Blender
• Measuring beakers for methanol and oil
• Half-liter translucent white HDPE container with bung and screw on cap.
  
• 2 funnels, make sure it fits in the HDPE container
• 3 2-litter PET bottles, 1 for settling and the 2 for washing
• Thermometer

Make sure you accurately measure all the ingredients, your success if dependent on them.
Steps on how to make biodiesel

1. Wipe dry all the equipments you are going to use.
   
2. Mix lye and methanol.
   Quickly transfer your methanol into the HDPE container using the funnel.
   Carefully add the lye to the methanol and screw the cap tightly.
   Mix them by rolling the bottle a few times.
   Do not shake the mixture; it may be dangerous.
   
3. Pre-heat the oil at 55 degrees centigrade, and put it in the blender.
   
4. Add the methanol mixture to the oil in the blender.
   
5. Blend the mixture at low speed for at least 20 minutes.
   
6. Transfer the mixture in the PET bottle intended for settling.
   
7. Leave for 12 to 24 hours.
   

Upon settling, the mixture will have a darker bottom and a lighter top.
The lighter mixture is the biodiesel.

1. Transfer the mixture into the washing bottle and add water, bubble wash for several times.
   

There you have it your very own biodiesel.
Test your product, make sure that it works the way you want it.
Make another batch if necessary test again.