A man who brought his newly bought car in to see why the gas gauge always read half full got quite a surprise: a stash of marijuana hidden inside.

A mechanic in Sandy who took a look at the gas tank discovered about 35 pounds of pot, which Sandy police say is worth about $35,000. The packages of drugs were wrapped in plastic and could have been in the tank for several months.

The Nissan Armada had several different owners and was once a rental car. Police are trying to figure out who stashed the drugs in the tank. Police say the current owner is not a suspect.