When you drive around in a diesel-powered vehicle, you generally need to be a little more cognizant of your fuel usage habits than you would in a typical gasoline-powered vehicle. Diesel is generally more expensive than gasoline, for one thing, but in addition to that, diesel actually comes in a handful of different, subtly distinct varieties, such as the various dyed diesel fuels meant to be used by professional vehicles. That’s not even mentioning the number of diesel additives
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