[header] How to wash your car without water [title] Determine if a waterless product is right. [step] If your car is caked in mud, a waterless car wash will not help and might even scratch the paint of your car. Only use a waterless product if you have minimal dirt or dust. 
Otherwise, rinse your car with water to remove dry dirt, then use the waterless product. [title] Use a waterless car wash with wax for an added sheen.