You're right, the fuel here has more additives, lubricants and less sulphur too. That article seems a fairer comparison and covers almost every aspect. One thing that bugs me though, every time they compare, they do it in the UK too, they always mention the extra purchase cost and fail to understand that you get that $1000 extra back when you sell it. Having a different fueled engine doesn't make your car depreciate any less or more, not when comparing diesel/gas anyway. Electric is another story. They did mention lower maintenance, but forgot the longer oil change intervals due to diesels lower revving nature, and the extra lubrication the fuel itself gives, they can be up to 30,000 on a large car, or as mine is, 20,000 on a smaller one. Would save people who do a lot of miles a lot of money in the long run.
Also, alot of these comparisons were drawn up a few years back. In recent times, technology has moved on as more attention is paid to all types of emissions, not just C02 now. Even though DPF'S cut particulate matter by 99.9 %, in parts of Europe they have developed "city diesel" with zero sulphur content now, so this mythical 0.01 % of remaining "soot" will soon be banished entirely. Other N0X reducing tech like selective catalytic reduction has further reduced N0x emissions by 90%, in a few months, manufacturers are going to have to turn thier attention to petrol cars as thier emissions will be higher than diesels!
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