Amazon Prime members can save an additional 10¢ per gallon on gas every Friday until June 30. Combined with the existing discount, Prime members can save a total of 20¢ off per gallon each Friday.

Amazon Prime members can save an additional 10¢ per gallon on gas every Friday until June 30. Combined with the existing discount, Prime members can save a total of 20¢ off per gallon each Friday.

The discount comes as prices at the pump averaged $3.14 a gallon for regular, according to AAA. The 20-cent gas discount applies at more than 7,500 Amoco, AM/PM and BP gas stations across the country.

giving Prime members 10 cents off per gallon at thousands of gas stations across the U.S. From now until June 30, Amazon is increasing the discount to 20 cents per gallon on Fridays. The 20-cent ...