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  1. 2010-2013 Mazda 3 & Skyactiv Discussion
    I'm in Canada and I have GT HB 2.5L engine. In the owner manual there's two options. One of them is for 2.3 liter engine The other is 'Except 2.3 liter engine So does the 2.5L fall under the Except 2.3 liter engine?? Is 2.3 liter engine for the Mazdaspeed 3? Also does anyone know what the...