Liquids can often leak out in transit, and some items are not suitable for shipping on a pallet
Leakable goods can cause problems due to the risk of potential damage to goods in transit, and certain items cannot be shipped.
The following items cannot be shipped. These items are a known risk for leakage or contamination to people, environments or other items in a shipment.
Liquids
Adhesives
Paints
Engines, generators, or other mechanical parts that have contained oil, unless completely flushed out and dried, require access to the dipstick. If any oil is present, the collecting driver will refuse the engine.