Sounds good to me I'm going to start off with a gallon or two under the hood purge-style, to see how it runs on it, then I'll go from there if diesel gets expensive enough to make it worth using (2.85 or higher....)

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It is not 10% saturated fat. A serving of that oil provides 10% of your recommended daily allowance of saturated fat.

Hydrogenated does not mean animal fat. Margarine is hydrogenated vegetable oil. You are thinking of cholesterol maybe?

And the reason I was suggesting an electric heater was because you said you wanted to dump it straight into your 1 tank car.