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  1. 2004 Outback H4 - bucking under 2000 rpm

    Problems & Maintenance
    During the Vermont Winter, my Ouback has developed a bucking, especially under load, below 2000 rpm. I've never experienced this until this Winter. I've owned the car since 2013. I've been adding dry gas and started using a higher octane without any improvements. The CEL is Not on. One...