94 cummins on veggie oil
 

im looking into a filter system to run veg oil in my truck this spring. dont know much about the oil and didnt know if it would cause any damage to my engine?
thanks!

I run it in my diesel mercedes no problems from the engine a little less performance and less fuel mileage we filter down to 2 micron and i was still getting clogged filters need to be real picky about the oil you get we heat our oil overnight to remove water then filter first thru a 50 micron then a 10 then a 2 then thru a waterblock filter on the fuel pump there are also different additive you mix in with it kerosene gas power service or howes but as it is winter now it's no good also you going to want to run an elect fuel pump

i heard real bad stories about cummins and diesel on it. i hear it leaves a lot of grease in the bottom of your tank and filter and clogs injectors and stuff. id say no go. itll be bad if anything to an already rare 12v

i ran a gallon of oil like peanut veggie or what ever to ten gallons of diesel and that cleans out the fuel system it took about 600 miles to get enough gum to start clogging my filter no problems only good and your truck will smell like a deep fryer lol

Invest in it a bit...
 

So below is my experience and ramblings about vegetable oil:

Step 1: If you want to run vegetable oil or any other very viscous fuels you need to reduce the viscosity in order for the truck to use it. Vegetable oil comes in two types: hydrogenated and non-hydrogenated. You want to get non-hydrogenated vegetable oil that has been filtered down to the lowest possible micron rating. I hear some folks running 10 micron veggie oil through their trucks without problems but then again you can pretty much hear anything you want to nowadays. :nope: So, once you have some nice DEWATERED fuel filtered down pretty low (I like 5 or below), you still have a very viscous fuel. So you need to work on step two.

Step 2: Some folks mix a bunch of stuff together and produce a RUG mixture. Some people add kerosene or even gasoline to cut the vegetable oil. Some also add tranny fluid and all sorts of stuff. Please, I am not trying to bash other people here on this forum or in other forums but I have tried and seen a bunch of stuff and a lot of it didnt work. So, the folks I have seen and know quite well, have all said that putting these things into a stock fuel tank is very risky. So if you want to run vegetable oil save a little time mixing fuels and invest in a heated vegetable oil system.

I used to have a diesel mercedes with a Frybrid veggie kit in it. Worked great and I never had an issue except for fuel filters (not filtered enough). There are many different systems out there that will allow you to burn vegetable oil. The systems heat the veggie oil thus reducing the viscosity and also providing a separate fuel system to keep the diesel and veggie oil from mixing.

Over time vegetable oil will burn fine and not ruin the engine if a well built kit is used. Then again, I live in the north and even on a summer day, vegetable oil can clog up filters, clog up injectors, change fuel spray patterns and overall ruin a lot of money worth of parts while trying to save a couple of dollars. The other option is to make your own biodiesel which chemically alters the vegetable oil ester; cleaving the glycerol and replacing it with an alcohol unit. This reduces the viscosity of vegetable oil while also adding to its energy content.

Thanks for listening and I hope something above helped. I have had a lot of headaches and know many people who have had problems with this whole experimenting thing. Good luck!:tu:

he is right. i like washed bio diesel. a heated tank will work for running veggy oil but bio works alot better.