Cod Liver Oil for Your Vehicle?

Is it possible to combine fish oil with diesel fuel to reduce the pollution caused by cars and trucks?

In October, after a trial that started the previous winter, Halifax
switched its entire transit fleet to biodiesel [the fuel that includes fish
oil].

Like the fuel being used for [a] Moncton [New Brunswick] trial, Halifax buses run on a biodiesel that's a blend of 20 per cent bio-fuel made with fish oil and 80 per cent regular diesel.

Studies show the biodiesel being used in Moncton, known as B20, emits 16 per cent fewer greenhouse gases than regular gasoline. Ivany relayed recent test results that show biodiesel emits 19 per cent fewer unburned hydrocarbons, 18 to 28 per cent less carbon monoxide, depending on the age of the engine, and 14 per cent fewer particulates, which are various material from sources including sand, sea salt and black smoke.

Another consideration, of course, is cost.

There's virtually no difference in the cost to fill the gas tanks of the six city vehicles with biodiesel. The alternative fuel currently retails for about 1.5 cents less a litre than regular diesel, ...

Maybe. But if the sustainability of the fish stocks is in serious doubt, I have to wonder how successful this programme will be.