CleanUp Technologies: Re-engining

Buses, in particular, usually require a new engine at some time in their operational life. Significant reductions in both nitrogen oxide and particulates are normally realised when an old engine is replaced by new technology. Some trials have shown that with careful matching (perhaps with a revised gear-train) fuel consumption may also be improved. Reliability is also likely to be better.

Euro 3 engines are now available which deliver over 35% nitrogen oxide and 70% particulate reductions on a pre-Euro engine (more if a particulate trap is fitted).

The CleanUp programme will help to fund suitable re-engine strategies to either diesel or gas operation.