Compression Ignition Addict
Join Date: Sep 2007
Location: Ethereal State
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Dry oil is crystal clear. Any opacity indicates the presence of water. The only exception is filtered fats that have been de-watered. They will cloud up when they gel at cool temps.
You don't have to "cook" the oil. I think your 150*F mark is too low since your oil obviously is very wet. Heat to 180*F then stop the heat.
You say you wait for four days. Is the exterior of your HWH insulated? I know HWHs are internally insulated, but extra insulation is very important because de-watering occurs during S-L-O-W cooling. Get a roll of R-13 and some duct tape.
I have a bottom drain for water, sediment and fats.
I have a standpipe drain for the dry oil six inches off the bottom.
I pass the HPT 90% on my first try and always if I heat again.
1997 F-350 7.3L PSD - 326K miles - 40+K on VO - Plant Drive Kit
1984 Mercedes 300D NA - 160K miles - 10+K on VO - Custom Two Tank
Running on VO and biodiesel since May 2006
Without oil you're nowhere!