Yes this is a very wise thing to do. The EPA has gotten very strict and has demanded manufacturers clean up their act and become more socially conscious, In that end most products have to be designed to emit as little exhaust as possible so getting the new diesel is a great idea.
There are many benefits of a diesel exhaust or DEF diesel exhaust fluid. It is very efficient and it has lower concentrations of nitrogen in the fumes which it releases. It is an aqueous urea solution with 67.5% of it deionised water.
DEF (diesel exhaust fluid) is used as a consumable in SCR (selective catalytic reduction) in order to lower NOx concentration in the diesel exhaust emissions from diesel engines.
It is a solution of pure water and 32.5% urea. It is injected into the exhaust stream to lower emissions.
Diesel #2. During the winter in the states that get regular temperatures in teens and below, you should use diesel #1 because diesel #2 will gell at lower temperatures.
Exhaust Gas Recirculation. A small amount of exhaust gas is fed back into the cylinder to lower combustion temperatures and lower tail pipe emissions.
Petrol, it has a lower flash point and is more flammable than diesel
it is a emission device exhaust gas recirculation , it take exhaust gasses and by control of the cars pcm or computer and a egr valve it introduces a calibrated amount of exhaust back into the engines air fuel mixture.exhaust being mostly a inert gas will lower combustion chamber temperatures for a more efficient burn that will lower nitrous oxide emissions. its also re-burns left over hydro carbons that do not get burned in the combustion process
look on lower radiator hose, or under exhaust manifolds in the frost plugs. ona diesel the heater looks like a spark plug by the oil filter
Enzymes are needed to lower the activation energy so that the reaction can occur at temperatures at which living things can survive.
Heat.
At higher temperatures.
troposphere