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Old 07-08-2005, 02:22 AM
gmbowen gmbowen is offline
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Join Date: Jan 2005
Posts: 11
Not all types of WVO are created equal. Different ones have different iodine numbers. Basically what this means is the potential for polymerization under heat and pressure. The catch-22 with triglycerides is that the ones with the least potential for polymerization are the saturated fats. (Bonding between triglyceride molecules to form polymers begins at the double bond(s) in an unsaturated molecule) Trouble is, the saturated fats are the ones that are often semi-solid at room temperature. Some oils, like soy and canola, are enough of a happy medium that you can get away with it in a 617 by going through all the rigamarole of dual tanks, preheat, etc. But others will wreak havoc quickly. You wont get away with it with any oil in any of the new commonrail direct injection systems. I'm obviously a believer in biodiesel. Rudolph Diesel did indeed invent his engine to operate on peanut oil, but that was before they had modern injection pumps. Ok, enough out of me.
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