Blue Max is a concentrated, VOC Compliant, light to medium duty cleaner / degreaser that is citrus scented, features a high, penetrating foam and can be used both in auto interiors and exteriors. Mix 1:4 for Engine, exterior grill work and rocker panels. For cleaning interior rubber, plastic & vinyl surfaces, mix at 1:8. For interior upholstery and carpeting mix at 1:8.