Low Emission Vehicles (LEV)
LEV is a term applied to a vehicle which meets the highly-regarded Californian USA anti-pollution laws. As part of a programme to reduce the vehicle exhaust emissions of all vehicles sold in California, the State has set emission lowering targets to be reached over the next few years. This targeted approach has arguably generated the most powerful emission lowering law in the world.
The standard set for LEV status is a 70% reduction in Hydrocarbon (HC) and a 50% reduction in Nitrous Oxides (NOx) emissions over that allowed in 1995.
The LEV engine fitted to all New Zealand new Hondas not only meet with the stiff LEV standard well ahead of the required target date, they actually exceed the standard by a further 80% reduction in emissions. To achieve this, without sacrificing performance, Honda applied subtle design changes to the standard SOHC/DOHC engine's in these areas:
...they actually exceed the standard by a further 80% reduction in emissions
- The way air and fuel are fed into the engine, especially when cold;
- Redesign of the fuel injection system to deliver more precisely the amount of fuel at any given time;
- Changes to the exhaust design allowing for a quicker warm up of the catalytic converter and stability of operating temperature;
- Changes to the material composition and surface area of the catalytic converter allowing for increased cleaning of the exhaust gasses.