Some items are like bad stand-up comedy: you’re stuck with them. Used batteries with corrosion? Nope. Custom parts that were special-ordered? Hard no. Paint that was mixed for your car’s specific shade? You can return it, but only if it’s unopened, and honestly, why would you? Also, no returns on chemicals like oil or coolant if the bottle’s been opened. That’s not mean; it’s just health code logic—nobody wants your half-used brake fluid.
One more thing: if you don’t have a receipt? You’re not totally doomed. AutoZone can look up your purchase if you used a credit card or phone number. They’ll give you store credit at the current selling price, which might be lower than what you paid. So unless you enjoy a game of “Guess How Much I Overpaid,” always keep the receipt. Pro tip: take a photo of it and send it to yourself. Future you will thank past you.