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  1. Z

    Is recomended oil grade 5-20 a MUST?

    I did internet research on that issue and find out that MAZDA has to justify their mileage data on the sticker by recommending thin oil. Sure, it might not damage the engine during the warranty period. I believe that during hot summer months the wear and tear will be excessive on 5-20. I plan...
  2. Z

    Engine knock on CX-9 GT 2008

    I'd like to report a problem: Just bought a CX-9 GT and am experiencing a very strange rattle coming from the engine compartment when accelerating very lightly and engine being fully warm (being ran for at least 15min). The rattle is coming during 2000-2300rpm. Below and above that range, the...
  3. Z

    Engine knock on CX-9 GT 2008

    I'd like to report a problem: Just bought a CX-9 GT and am experiencing a very strange rattle coming from the engine compartment when accelerating very lightly and engine being fully warm (being ran for at least 15min). The rattle is coming during 2000-2300rpm. Below and above that range, the...
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