Veg Stuff

[jaoneill]

FWIW,
For the past year or so I have been "cold" filtering (room temp 65-75f) some of the nastiest "diner grease" imaginable. Grease is dumped through an old fashioned milk funnel/filter into a barrel then pumped through two in-line whole house water filters, 10 then 5 microns. Although its automated, and I don't have to babysit it too closely, it is a relatively slow process.

I recently acquired a new 50 gallon a week source (chinese) of wvo. The oil is fairly clean, eliminating the need for the initial "milk filter" step but I thought it might be advantageous to heat the oil for filtering. Put together a barrel heater and warmed oil up to about 120-130 before turning on the filter system; worked like a charm, took 10 minutes to filter a barrel as opposed to 2+ hours for the cold process. Did 150+ gallons last weekend in less time than it would have taken for 1/4 that amount with the cold method.

On the wvo side of the 190D's setup I have an inline prefilter and a heated Frybrid filter. After 25K+ miles the prefilter had to be changed and I changed the cannister on the Frybrid at the same time because it seemed like a good idea. Yesterday, for the first time, I filled the wvo tank with oil from the warm filtered process. Clocked just over 250 miles and the car began to miss and sputter; prefilter was plugged solid. Had a spare in the trunk, and they are only 2 bucks, but what a PITA. That new filter plugged today at just over 300 miles. I am thinking that perhaps the "warm filtering", although faster, is no where near as effective.

Anyone else have any thoughts on this?

Jim