Conceptionaly if you can do everything well enough that the flame front is enabled to consume all the vegatable oil injected into the engine. It technicaly should be okay.

Remember I am not a big fan of the stuff. If any does not get burnt is where the more serious internal engine troubles start over time.. Plus of course the more seriously contamination of the base oil.

Fuel quality requires reasonable vigilance as well. A user should establish a good system and religiously stick to it. The injection pump and injectors are not a garbage proccessing unit.

I suspect it costs a certain amount of money to build up a system that meets these requirements. I also suspect the higher the temperature of the vegatable oil at the point of injection the more likelyhood for more complete combustion.

I am starting to suspect that the more complete burn may also be enabled by higher base fuel pressure in the injection pump. The viscosity will always be thicker or higher remember. Semi logically this makes some sense to me. One poster on this particular thread made me consider it from his fairly recent experiences.

His power did not signifigantly increase but his milage really appeared to.. One way or another he was probably extracting more btu's out of his fuel than he did before.

This indicated to me a better more complete burn was occuring. There are some other possible considerations from the effect. Yet an improvement of the burn cannot be ruled out.

The last thought I have is a general one. It is best to be a fairly competent hobby mechanic at least before doing vegatable oil. Otherwise some problems that arise if they do could be more difficult to manage. Even if I am not crazy about the ideal of burning the stuff myself as I previusly mentioned.

It still would be wrong not to post what I think. It can become particularily hard to advise an owner burning vegatable oil that has no previous knowledge doing mechanics over the years.

We fortunatly do have some members that are quite conversant with working on cars burning it as well. I think they obtain better lifespans on the fuel. We went through a period of basically some people just dumping the stuff in the tank in almost any condition and driving. This was a bad thing in my opinion.It may still be going on to some extent.