Colin-on-Cars – Isuzu moves to Euro V tech

Isuzu Motors South Africa is ramping up its contribution to reducing greenhouse gas emissions by introducing Euro V technology to its new generation N and F series range of trucks.

While South Africa’s vehicle population of 11-million road vehicles is only 0,79% of the world total, responsible Original Equipment Manufacturers (OEMs) and fleet operators cannot, and do not, overlook the harmful effects of exhaust emissions.

As from 2008, all vehicles sold in South Africa had to comply with Euro II – Euro III and IV have not been compulsory in South Africa while Euro VI has already been introduced in Europe.


There is an important distinction between greenhouse gases and European emission standards that are driving both diesel fuel and diesel engine technology – Euro emission standards impact on quality of air, greenhouse gases impact on the climate and the aim of Euro emissions standards is to reduce the levels of harmful exhaust emissions, chiefly: Nitrogen oxides (NOx) Carbon monoxide (CO) and Hydrocarbons (HC).

The success of Euro standards is linked to the quality of diesel fuel, particularly the sulphur content ratio.

Sulphur oxides are destroyers of filtration equipment. While 50 ppm sulphur (parts per million) is now generally available, regulations will limit sulphur in diesel to 10 ppm  so Isuzu’s truck introduction of Euro V standards is timeous and matches the change in fuel standards.


The Move to Euro V comes with after-treatment in the exhaust system. A combined unit comprising a Diesel Oxidation Catalyst (DOC) and a Particulate Oxidation Catalyst (POC) for the N-Series and DOC for the F-Series ensures that emission is limited to Carbon Dioxide (CO2) and Water (H2O).

The advantages of this system is there is no need for any additives such as urea (AdBlue) to make the technology work for a clean exhaust.

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