A friend of mine did some tests with the Amsoil Cold Flow Improver product last winter. We make Biodiesel and winter can be nightmare on gel points with Biodiesel.
Of all the products I've seen, read about, played with, or heard of, the Amsoil stuff just blew them away!
We were able to run B100 (100% Biodiesel) in the tank this winter in a 2003 Ford 7.3 and never had a single gel up in the tanks using the Amsoil product. Before my friend dared try that, he took some Biodiesel and blended the Amsoil cold flow product into it in different ratio's. He then stuck the bottles in the freezer to see what would happen.
The results were amazing! In the smallest concentration, the Bio did sort of gel up but it never got solid. It's the best stuff I've ever seen for cold flow & Biodiesel!
We had a week in Utah where temps dipped in the 0 to 10 deg. F range. The truck with 100% Bio and the Amsoil cold flow improver in it was sitting in a parking lot for 8 hours a day in the blistering cold & wind up on a hill (Hill Air Force Base) in the winter chill.
There were a few days that my friend thought for sure he'd be calling a tow truck, but every time it fired right up & ran great! Made a believer out of me!
I don't know how well it works on all types of Biodiesel (Bio can be made from various types of oils; ours was made from Canola feedstock, which does pretty well in winter weather already, but would've been a solid lump in that cold onslaught we had). But I can say for the stuff we had it worked INCREDIBLY well!!!
You've got my vote Amsoil!
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