"Modern diesel" refers to a type of fuel used in engines, usually found in newer vehicles. It is more efficient, cleaner, and less polluting compared to older diesel fuels. Full definition
It will also top the fuel efficiency of modern diesel engines. (bestride.com)
Modern diesel vehicles have adopted new standards and are now very clean, so attention needs to now turn to regulating on - road and off - road gasoline engines more. (sciencedaily.com)
However, modern diesel cars have turbo's which seems like a component that could easily blow. (mechanics.stackexchange.com)