Characterisation normalisation and weighting results reveal

4. Conclusions
AcknowledgementsThe research of this study was supported by National High-tech Research and Development Project (Grant No. 2012AA062302), Major Program of the National Natural Science Foundation of China (Grant No. 51090384) and the Fundamental Research Funds for the Central Universities (Grant No. N130602003).
Life BMS-538203 assessment (LCA); Remanufacturing; LNG engine; Diesel engine; Environmental impact
1. Introduction
Diesel engine remanufacturing has been recognized for better environmental performance than that of newly manufacturing. In contrast to newly manufacturing, engine remanufacturing preserves much of the product value, which “recycles” the value of the raw material, labor, energy and manufacturing operations of the original engine (Liu et al., 2014). In addition, engine remanufacturing makes a greater economic contribution per unit of product than newly manufacturing. Since 2008, China has attempted to set up several auto parts remanufacturing bases under the direction of the National Development and Reform Commission (NDRC, 2006).