If not, drop it off at an Advance Auto Parts store or a hazardous-waste facility. In all cases, keep coolant in the original bottle, and don't mix it with oil. Where it goes: Usually disposed as ...

Mix together equal amounts of baking soda and cooking oil – for one small jar, a tablespoon of each will be plenty. Rub the mixture all over the sticky parts of the glass jar. Leave it on for 30 ...