The tallow is a high energy fuel. It has IIRC more energy than petroleum diesel.
The only thing it lacks is liquidity, and that can be added using heat.
If heated and filtered and then (while still liquid) added to the heated feul tank, it can pass thru the heated fuel line and heated filter to the fuel c/o valve and then to the IP.

I am NOT joking, this stuff really works well, is ULTRA STABLE (very low polymerisation) and smells like a BBQ on wheels. (where canola smells more like a deep fryer on wheels)

__________________
Tony from West Oz.
Fatmobile 3 84 300D 295kkm Silver grey/Blue int. 2 tank WVO - Recipient of TurboDesel engine.
Josephine '82 300D 390kkm White/Palamino int.
Elizabeth '81 280E, sporting a '79 300D engine.
Lucille '87 W124 300D non-turbo 6 cylinder OM603, Pearl Grey with light grey interior


Various parts cars including 280E, 230C & 300D in various states of disassembly.