A stash of grass can take the place of a lot of gas, but it won't do anything for mileage.
A Utah man took his newly acquired used SUV to a mechanic to find out why the gas gauge always read half-full.
The mechanic in Sandy looked inside the gas tank and found about 35 pounds of marijuana in plastic-wrap packages that filled about half of the tank's volume.
Police estimate the pot is worth about $35,000.
The Nissan Armada has had several different owners and was once
a rental car.
Sandy police are trying to figure out who stashed the pot but say the current owner is not a suspect.
Investigators in the town south of Salt Lake City say the drug packs could have been in the tank for months.