You may think its pointless but i am sure there are many petrol car drivers blissfully unaware their petrol car is as bad for the planet than the diesel alternative.
Diesel is now seen as the devils spawn yet when i bought my first 15 years ago we were lead to believe they were better for the planet as they did far more to the gallon and produced less CO2, at that time diesel was cheaper than petrol and road tax was £30 a big incentive to move from petrol to diesel, we are now in a situation where petrol cars are producing the same amount of particles as diesels but few petrol car buyers are aware hence the looking down your nose comment.
Cast your minds back to about a decade ago and you may remember the world’s attitude to diesel was very different to now.
In fact, it was near enough the complete opposite.
Diesel cars were regarded as the cleaner alternative to petrol, with a smaller average output of CO2 – which, you may already know, contributes to global warming – at the tailpipe.
This was reflected in lower road tax and rising popularity among car buyers.
Manufacturers responded by investing heavily in diesel technology, so in only a handful of years, diesel engines evolved into advanced, refined powerplants – a far cry from the clattery, smoke-belching diesel motors of the 20th Century.
How quickly things can change. Fast-forward to 2016, and diesel was no longer seen as a solution.
Despite consistently producing less CO2 than petrol engines, a global emissions scandal broke out when it was revealed many diesel models produced far more nitrogen oxides (NOx) than they were claimed to do.
While not classified as a greenhouse gas like CO2, NOx is harmful to human health, especially when concentrated in urban areas.
It quickly became clear that a new problem had been created by the rise of diesel.
https://www.cinch.co.uk/guides/ask-the-experts/are-petrol-cars-really-cleaner-than-diesel