How to save at least $1 per gallon on gas every week this summer with OnePay

OnePay, a consumer financial technology company with ties to Walmart, is giving users at least $1 per gallon back on gas purchased on Wednesdays through Sept. 15, ideal for those filling up before, during and after those long summer vacation road trips.AAA put the national average for a gallon of regular gas at just over $4 on Aug. 5, so with this $1 back per gallon offer, you could get roughly a quarter off the average pump price before factoring in additional savings through a fuel rewards program or one of the best gas credit cards.To take advantage of this deal, here's everything you need to know.Related: Get up to 5% cash back on Walmart purchases with the new OnePay CashRewards CardHow the OnePay Wednesday deal worksOnePay runs rotating gas offers inside its app (one of which you must activate before you fill up), and each one carries its own cash-back rate. The Wednesday promotion adds $1 per gallon on top of whatever that offer already pays and any cash back you earn from selecting gas as your monthly cash-back category, so you have the potential to save more than $1 per gallon.Rewards are posted as OnePay Points that you can redeem as a deposit into a OnePay account and us...