I’m a car enthusiast first before a motoring journalist. I love driving almost all types of cars: supercars, subcompact hatchbacks, executive sedans and even big lumbering SUVs. But I recognize that resources are limited, including clean, breathable air, fossil fuels and the money in my pocket. I want to stretch these resources available to me so I can enjoy motoring far longer. So when someone tells me that they have the cleanest fuel, diesel in this case, available and priced at regular diesel fuel prices, I stand up and pay attention.