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 $1 off per gallon at 7,500 gas stations for one day only

If you’re traveling somewhere with a participating BP, Amoco or ampm station, you can save $1 per gallon on Friday, Oct. 3.

Amazon Prime members can save $1 per gallon on gas for 1 day only. Here's how in Michigan

Amazon Prime members can save $1 per gallon at participating BP and Amoco locations on Friday, Oct. 3. How to redeem the deal.