A diesel engine is almost 30% fuel efficient and 14% extra cleaner than a similar sized petrol engine

If you visit the USA and meet any man that opposes diesel engines and complains that he won’t get diesel engine and or “we just don’t get it here in USA” than you do not need to be surprised and try to be more European and somehow hearten him and promote light duty diesel engines because you need to do it in order to save the planet earth. You should know that the diesel engines are fuel efficient and low on carbon emissions than petrol engines.

These compression ignition lovers don’t understand that the U.S. policy is based around environmental protection and global warming and most importantly they are eager to decrease carbon emissions, whereas it used to be about cutting off fuel usage. It only can be accomplished by using fuel efficient engines. So, let’s have a look at the difference between the carbon emissions from diesel engines and petrol engines; let’s talk in gallons of fuel;
1 gallon of diesel when burned will emit 22.38 pounds of carbon while 1 gallon of petrol emits 19.64 pounds of carbon dioxide. Diesel is almost 15% more carbon emitting than petrol.
Mind changed? Do you think that diesel is dirtier than petrol? Yes you are right but the actual maths still need to apply. Let’s see what happens…

A diesel engine is almost 30% fuel efficient than a same sized petrol engine. So if we line up these stats than the answer will be according to your aspirations. Diesel engines are 14% extra cleaner than a similar sized petrol engine.

So, it is clear that diesel engines are cleaner and efficient than petrol but there could be some other factors that can prevent people from preferring diesel engines, such as price is a big factor. In U.S. markets, diesel is 30% more costly than petrol. Hardware maintenance of diesel engines is also costly in U.S. which can cause an altered buying behaviour towards diesel engines.