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  1. Mechanic put some cheap GL-5 fluid in my manual transmission

    2010-2013 Mazda 3 & Skyactiv Discussion
    And after a month it feels super notchy and terrible. A lot of worse than it did before. Did some research and people are saying Gl-5 fluid is bad for the transmission? Will I have done a lot of damage after a month of using it? What should I put in instead? 2010 3 GT w/ 6speed manual
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