One of the most basic fuels (or, at least, mixture of fuels) around – and for the C1 exam, you have to know all about it. What it actually is, different fractions, and how to separate them – this and more is stuff you need to know. So, let’s guess what we’re going to cover here… that’s right, everything about crude oil that you need for the C1 exam. Ready? Here we go…

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