A few years ago, there was a fad for putting filtered used cooking oil in diesel cars in place of pump diesel, which caused a degree of alarm among manufacturers of modern diesels.
Today, after years of research and development, B7 pump diesel (containing up to 7% biodiesel) is available on forecourts, can include used cooking oil as a raw material and is safe to use in diesels. Now tyre companies are also turning their attention to used cooking oil in the manufacture of new tyres.
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