Gas Pump Database

A statewide database of gas and diesel retail pumps that failed state inspection from April 1--May 4.

The error rate is measured in cubic inches (there are 231 cubic inches in a gallon of gasoline).

The acceptable error rate is 3 cubic inches for new pumps and 6 cubic inches for ones already in service (a few tablespoons full) in a five gallon sample (1151 cubic inches).

Pumps that fail because they are short (negative numbers) are taken out of service immediately.

Pumps that fail for giving too much fuel (that typically happens 2/3rds of the time) are given a five day grace period for repairs.

The last column on the database is the manufacturer serial number of the pump in question.

TIPS FOR GETTING WHAT YOU PAY FOR AT THE PUMPS

--Buy gas from a trusted source.

--Make a point of knowing the seller.

--Watch the dials for sudden changes, jumping numbers, or erratic readings.

--Check the cost after pumping 10 gallons against the advertised price for that grade of gas (10 gallons at $2.999 should cost $30)

--You might get slightly more fuel for your money on a cold day when the gas is denser.

--If you suspect a problem, call the state petroleum hotline. Inspectors will check the pump--and if you wish--call you with the results.