When I was growing up, diesel was always considered the greener option than petrol, and this was reflected in the prices, diesel always cost less because it was taxed at a lower rate.
Now they say it’s worse than petrol and prices are now higher for diesel.
So what changed, or what did we suddenly learn about diesel that we didn’t know before?
Bonus question, considering they’re both made from crude oil, what’s the difference in how they’re refined?
In: Chemistry
After a bit of scrolling, I’m surprised not to have seen a mention of diesel exhaust fluid (DEF). Diesel engines made after 2010 are required by law to operate with DEF in accordance with the EPA. I’m not an expert on the science of it all, but I know my entire work fleet needs it. It helps turn exhaust into nitrogen and hydrogen, but again, I’m no expert.
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