Vegetable or Used Cooking Oil in a Diesel Car

Driving a car on vegetable oil can be used to run a diesel car just as well as regular diesel gas. You can even use utilized cooking essential oil , the still left overs that gets still left in the bottom of deep unwanted fat fryer. All that is required to convert the utilized cooking essential oil to gasoline is normally filtering .

Obviously, filtering the utilized cooking oil does take time but it is certainly worthwhile for virtually free gasoline. The car will not even have to be improved to perform on vegetable essential oil nevertheless, you should just end up being using an previous car to visit such as this.

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DO YOU REQUIRE Vegetable Essential oil in a fresh Car?

Vegetable essential oil can be found in newer vehicles but they will demand a conversion package to take action. Modern diesel vehicles have got high pressurized gasoline pumps and make use of lucas injection pushes. Many older vehicles run far better on vegetable essential oil with minimal if any adjustments.

There is certainly even situations of aficionados clocking nearly 300,000 mls upon this open up source database of vegetable oil drivers. The most common cars that use vegetable oils are Mercedes (W124, W126, W123 models), Volvos and Volkswagens.

Pros and Cons Of Traveling On Vegetable Oil

If traveling your car on vegetable oil is so good, why isnt everyone around the world doing so? This is a common query and you will find advantages and disadvantages of using cooking oil.

Benefits of Using Vegetable Oil as a Gas

  • Environmentally Friendly
  • Much cheaper than regular diesel gas
  • Better lubrication and less engine knocking
  • Widely Available at shops to restaurants
  • Better gas economy (for some cars)

Negatives of Using Vegetable Oil as a Gas

  • Conversion for newer cars is expensive
  • May void a vehicles warranty
  • Smell from exhaust and when handling
  • Pay tax and customs on fuel used
  • Harder to start the car from chilly
  • If misused it can cause engine coking
  • Damage to some injector pumps
  • More maintenance

The negatives will be less relevant to older cars and this is the reason why older cars are used much more often.

Why Use Two Tanks When Operating Vegetable Oil

One of the biggest problems when owning a car on veggie oil is normally a grumpy frosty start. However, a couple of two options that can be done to assist your cold begin. The foremost is with the addition of some additives towards the veggie oil however the even more favorable is to apply two gasoline tanks.

The theory is which you have one container using vegetable essential oil as well as the various other with diesel gasoline. When you initially start the automobile from cold, it'll run in the diesel fuel before vegetable fuel is normally heated to the idea where it decreases its viscosity where in fact the pump can handle the fuel.

Using a fuel switching solenoid valve, you will be able to switch to the vegetable fuel and allow it to flow from the tank to the engine.

5 Common Questions Asked Regarding Vegetable Oil

Not everyone will have the knowledge or are just curious about the possibility of using a different fuel other than diesel or gasoline. Many people to this day are using used cooking oil and vegetable oil as their 1st choice fuel.


  1. Can a petrol/gasoline car run vegetable oil? No. With the use of spark plugs and so on, the combustion is completely different.
  2. Can all diesels run on vegetable oil? Most modern diesels have high pressurized fuel pumps which make it harder but its worth speaking to a professional to ask about your car in particular.
  3. Is their any difference in performance and fuel economy? Dependent upon the car but you may feel less performance during the winter as the oil thickens and according to Mythbusters test , there was 10% less fuel economy using vegetable oil, however this was still free fuel.
  4. Will my cars warranty be void? Yes, 99.9% of car manufacturers will void the warranty and we recommend that you wait until the warranty is over.
  5. Difference between SVO and BioDiesel? SVO is Straight Vegetable Oil whereas BioDiesel is a mix of vegetable oil and diesel/additives.


Who Should Use Vegetable Oil In Their Cars

Clearly using this alternative fuel is not going to be to everyones taste as it can be smelly and requires a bit more than going to the fuel station. However, it can be many peoples hobby and there have been millions of miles driven using vegetable oil.

These millions of miles however isnt just luck, there is also various amounts of maintenance that must happen. For starters, the fuel filters must be changed regularly, diesel fuel additives used to clear fuel lines and general all round car servicing.

Is quite surprising that many countries such as the US or UK want to add tax onto users even though its the greenest fuel there is on the planet. They be promoting it as its a different source from fossil fuels and is better than electric cars. Electric cars still need to be powered from electricity that gets sourced from the national grid that pollutes.

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