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- 2018 Mazda CX-9 GT
anyone know if the new engine would come with a new 5/60 warranty or does it fall under your current warranty? my 2018 GT (38.5K miles) was diagnosed with the crack issue after coolant leak noticed, orignally they said oil was clean (no coolant mixed in) & just the part would be replaced. When i went yesterday to get a loaner car (mine is down until April/May) they told me they are now going to replace the engine instead.