Gas prices might be testing $4, $5, or even $6 in some parts of the country, but fintech company OnePay is making a compelling offer amid high costs at the pump: you can get a dollar off, but only on Wednesday. For somebody willing to time their gas consumption, it could be a saving opportunity.

• Through Sept. 15, the company is offering “$1 cash back per gallon” up to 50 gallons, or two redemptions a day, at eligible gas stations in its app.
• The cash back will be earned in the form of OnePay Points, which can be redeemed into a deposit account on OnePay.

You don’t have to use a OnePay card… In fact, you can link any other debit card to pay with that — if you prefer that. Alternatively, OnePay offers a Banking+ membership tier where direct deposits can unlock higher APY savings rates, plus a 3% cash back category — and you can choose gas as one of the options.

Sorry NJ and WI: These two states are not eligible for some reason, so skip if you live here.