Amazon Prime members can save $1 per gallon on Friday, Oct. 3 only. Here's how to save at the pump

Amazon Prime members can save $1 off per gallon at participating BP and Amoco locations on Friday, Oct. 3 only. Here's how to redeem the offer.

Amazon Prime members can get 25 cents off per gallon every Friday. Here's how.

The promotion, which is part of a partnership between Amazon and BP’s Earnify program, arrives ahead of the holiday season.