The Renegade Detailer Series Citrus Safe Touch All-Purpose Cleaner is a ready-to-use in the 16oz size, is low-pH, non-acidic, and a non-caustic cleaner. It can be used on exterior surfaces such as wheel wells and engine bays and is also appropriate for the interior of your vehicle on surfaces such as door panels and dashboards, after being diluted 1:10 from the gallon size.