First of all, digging rid of magnesium castings' heaviness yields, for example, lighter car engines. The extremely light weight of the 132-pound magnesium crankcase certainly would not be possible with an aluminum part -- in fact it's likely that an alloy cylinder head would still turn out heavier than today's Toyota Marikina head! The lightweight magnesium castings are an ideal choice where not only their May weight lower operating costs due to fewer emissions but also last longer without repair work. Second, magnesium castings offer good corrosion resistance and longer life. Third, during the casting process it is possible to put in elaborate, complex and thin wall structures which are very difficult to achieve using other metals. Fourth, magnesium castings can be one of the most economical solutions for high volume production. In conclusion, magnesium castings offer automotive, electronic appliance, computer peripheral to improve performance, and reduce costs in a practical way.