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posted by kuhl
I am hearing rumors of diesel engines running on anything from sunflower oil to vegetable oil? In was wondering if any of the more chemically minded of our members could give me any more information on this?
1. any modification?
2. special equipment needed?
3. easy to build and operate?
4. miles per gallon be the same?
5. any other details you may have ...cheers [Edited by Don W]
Adam picked up some used cooking oil from a restaurant and filtered it to turn it into fuel. They got a diesel Mercedes and drove it around a 2.9 mile course at Alameda designed for constant 35mph driving. With the diesel baseline test they were able to go 8.8 miles on 1 liter (33.3mpg). They then switched to the used cooking oil and ended up getting 30mpg, only 10% less efficient.
They made no modifications to the diesel car and all they did to the cooking oil was filter it.
Originally posted by Aelita
I heard from a fairly reliable source that Russian tanks were/are capable of running on vegetable oil if necessary (by design), and there were a few controls in the engine that needed to be put in appropriately marked positions when you switched from common diesel to oil.
posted by dmg3417
I have read about converting waste vegetable oil into biodiesel. The WVO must be heated to evaporate the water, then add a certain amount of Sodium Hydroxide so that the glycerin in the WVO will separate, leaving biodiesel. It is then suggested that the diesel be washed in an additional process. [Edited by Don W]