The 2016 Prius Eco is rated at 56 mpg combined (58 mpg city, 53 mpg highway)--making it the new all-time fuel efficiency leader among vehicles that don't plug in to recharge their battery packs. ALSO SEE: Next Toyota Prius Plug-In Hybrid To Have 30 To 35 Miles Of Range: Source. You can see all three ratings here.
Corrosion is a natural process, which converts refined metal to their more stable oxide. It is the gradual destruction of materials (usually metals) by chemical reaction with their environment.In the most common use of the word, this means electrochemical oxidation of metal in reaction with an oxidant such as oxygen.orrosion can also occur in materials other than metals, such as ceramics or polymers, although in this context, the term degradation is more common.
Corrosion is defined as the degradation of materials by chemical reaction with the environment in which the material resides.. This is because of metal oxidation.As metals have a tendency to return to their natural state, it is a natural process which produces either salt or oxides.t is a type of concentration cell corrosion. This develops on coated metallic surfaces with a thin organic film. The corrosion generates the defect on the protective coating of metallic surface. The filaments of corrosion product is the cause of degradation of the coating.