Thread: StraightCooking Oil into the Tank

The June LRM had a section on just that - apparently though some of the injectors don't take too kindly to the lack of lubrication from the thicker oil.

Cooking oil should work on your freelander, but as a secondary source of fuel ( 2nd tank too). Using a heat exchanger in the 2nd fuel line (Which is what that LRM article uses) you start on ordinary fuel, and when hot run veg oil thru the line heater, and by then it is viscious enough to pass thru the injectors. The problem TD4 has is precision : Comparing it to a Merc bus is like comparing a dentists drill to a hammer. The bus would be able to squirt most anything down the pipes, but the TD4 injectors are built for specific fuels. As scrambler said, you might have problems with lubrication. But, don't let us dissuade you - it might just work

Straight oil will work in diesel engines, however not if you want your engine around long term. Using straight oil all the time is not good for your engines long term health. If you don't remove the gylcerin from the oil or fat it can glaze cylinder bores and gum up rings and injectors. Occasional use is apparently ok but i wouldn't use it all the time. Properly made biodiesel is the way to go, why stop half way, if your going to be getting the oil anyway why not turn it into diesel your engine will run better and last longer. Just my two cents worth.

I have to agree with langy on this. The old diesel engines were not made to the high tolerances that the new ones are today.

Also, if you want to do a job, do it once and do it well.

Thanks for the input - not intending to do it myself, however was intrigued (where is the spell checker) as to why this process wasn't used more often as it worked well for the guy with the bus without the hassle and dangers of making bio diesel.

Cheers

Gazzz

So how does straight refuse oil detonate with out anything to ignite it in the oil ? Surely compression alone wouldnt make it ignite ? Commercial diesel has some petroleum base to it ?

Originally Posted by loanrangie

So how does straight refuse oil detonate with out anything to ignite it in the oil ? Surely compression alone wouldnt make it ignite ?

That's precisely how a Diesel engine works - Compression Ignition. Rudolf Diesel's first engines were demonstrated using Peanut Oil, no petroleum content at all.

Originally Posted by 303gunner

That's precisely how a Diesel engine works - Compression Ignition. Rudolf Diesel's first engines were demonstrated using Peanut Oil, no petroleum content at all.

yES I KNOW HOW A DIESEL ENGINE WORKS, but commercial diesel has a petroleum base with some volatilty, cooking oil will not ignite easily.