Editing GM Ecotec engine (section)

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The '''GM Ecotec engine''', also known by its codename '''L850''', is a family of [[inline-four engine]]s, displacing between 1.2 and 2.5 litres. Confusingly, the ''Ecotec'' name was also applied to both the [[Buick V6 engine|Buick V6 Engine]] when used in [[Holden]] Vehicles, as well as the final DOHC derivatives of the previous [[GM Family II engine]]; the architecture was substantially re-engineered for this new Ecotec application produced since 2000. This engine family replaced the GM Family II engine, the [[General Motors 122 engine|GM 122 engine]], the [[Saab H engine]], and the [[Quad 4 engine]]. It is manufactured in multiple locations, to include [[Spring Hill Manufacturing]], in [[Spring Hill, Tennessee]], with engine blocks and cylinder heads cast at [[Saginaw Metal Casting Operations]] in [[Saginaw, Michigan]].
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