- Reduce trim provides a 7mm screw and T20 screw. Take away and pull down really hard. Not necessary to take away decreased trim for 2018's. Does the digital dash get the oil strain sign from the PP gauges or does it get it straight from the CAN bus? breeves002 https://kyleruselq.pages10.com/2015-mustang-gt-digital-dash-secrets-67447820