Fuel Additive and Bio-Diesel ?

[R C Cola]

I read the test reports on the additives and like others was a bit shocked. I have many reasons that I like Lucas (but it did not rate well) Some time back I started using Soy Bean Cooking Oil (Walmart by the gallon $5 ) as my LUBRICITY additive especially thru the summer months. I notice in the test that they talk about using (""1) 2% REG SoyPower biodiesel

HFRR 221, 415 micron improvement. 50:1 ratio of baseline fuel to 100% biodiesel, 66. 56 oz. of 100% biodiesel per 26 gallons of diesel fuel

Price: market value""" ) I'm kinda dense, but need to understand so I know how to mix properly in my tank. My "Cooking Oil "will run at 100% (I know because I have put it in the fuel filter) what I need to know is... . the 2 % mentioned in the test at(50 to 1 ratio) seems to be the same. What is the comparison viscosity ? of cooking oil (soy) to bio-diesel. Can I accomplish the same results as the test at the specified mixture or is my cooking oil thicker and would not need as high a ratio ? Anyone with knowledge or experience ? HELP !

 

[JGK]

I followed your percentage and numbers pretty well, but when you ask about viscosity comparisons, I'm unable to give you any quantifiable data. The viscosity of veggie oil varies by temperature and type (soy vs. canola vs. corn, etc. )



I can tell you that in general, straight veggie oil is thicker than biodiesel at a given temperature. As the temperature drops, at some point the oil will reach cloud point, then gel, before good quality biodiesel made from the same oil.



But 2 percent is pretty insignificant as far as concerns over gelling until temps get below 0. I ran 60% biodiesel mixed with winter diesel last winter. One night, even though my test jar of the mix left outside when the temps dropped to about 9 degrees showed noticable clouding and gelling the truck ran fine that morning.



Personally, as a lubricity additive, or for that matter, for any benefits, I would rather run good quality bioD than veggie oil. But at 2%, I think the difference in benefits is pretty minimal.



Hope this helps,

-Jay

 

[JFaughn]

To start , cooking oil is not bio-diesel , bio is processed to remove triglycerides and do other things , those are going to be the thickest parts of vegi oil , but at the percentages mentioned not of the viscosities mater .
Then cooking oil is many different oils , and the different oils have all different attributes , vs. , lube ect.
Also with your older trucks fuel system and the low % , there again isn't too much of an issue , but I do not recommend unprocessed oil especially at high % .

 

[R C Cola]

Fuel additives and soy oil ?

Sorry, I should have specified. Am presently using soy cooking oil at a rate of 20 oz / 20 Gal. or 10 oz / 10 gal as needed. Fairly close to the same ratio I would use for Lucas etc. etc. Not worried about cloud point since I am very careful to use it when running outside temps above 32 degrees. When pouring it seems to be about the same thickness as the Lucas and thicker than the diesel, which is what caused my question to come up. At the ratio they used BD I would need to put a lot more in to get the job done. Right now I stand at 550k and running smooth, injection pump has never needed repairs as yet .

 

[JFaughn]

I would say at a min. use the 50 to 1 that the test says , I prefer 10 to 25% , but I am using bio diesel , I do not recommend unprocessed vegi oil and that is not what the test you referred to is talking about , if you change what its talking about your doing something els .
There are 128 oz to a gal , so 50 - 1 , is about 2 1/2 oz per gal or about 8 3/4 oz for a 35 gal tank , if you are using bio-diesel as an additive , I am using as fuel up to where it seems to be more efficient [ HP TQ ] .