Personally, I heat my oil to 120 and hold it there to get any water to settle out. I take the oil from the top and gravity filter it still hot to my storage tank which I can also heat to keep the fat melted in the clean oil untill I put it in the car. My vehicle runs fine on oil that still has fat in it.

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Ron Schroeder
'85 300 Turbo Diesel 2 tank WVO
'83 300 Turbo Diesel 2 tank WVO
Some former WVO vehicles since ~1980:
'83 Mercedes 240D
'80 Audi 4000D
'83 ISUZU Pup
'70 SAAB 99 with Kubota diesel
'76 Honda Civic with Kubota diesel
'86 Golf
Several diesel generators
All with 2 tank WVO conversion
LI NY