4 x 4 Australia - - Tech Torque -

AUS­TRALIA has had ve­hi­cle ex­haust emis­sions stan­dards, which have pro­gres­sively be­come tighter, since the early 1970s. For the past 20 years – ini­tially for heavy trans­port ve­hi­cles and then from 2003 for all ve­hi­cles – Aus­tralia has at­tempted to line up with stan­dards de­vel­oped by the United Na­tions Eco­nomic Com­mis­sion for Europe, the so-called Euro stan­dards. Euro 5, the stan­dard cur­rently in play, is also known as Aus­tralian De­sign Rule (ADR) 79/03.

Euro 5 came into ef­fect for new-de­sign ‘Light Petrol and Diesel’ ve­hi­cles in Novem­ber 2013 and ap­plies to all such ve­hi­cles (even ex­ist­ing de­signs) from Novem­ber 2016. Light ve­hi­cles are de­fined as any­thing less than 3.5-tonne GVM, so that takes in pretty much ev­ery­thing that’s a recre­ational 4x4. Dif­fer­ent stan­dards ap­ply to diesel and petrol en­gines, and to heavy ve­hi­cles.

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