Many everyday gas-pump habits might feel harmless — but they quietly drain your wallet every time you fill up. One of the biggest offenders is topping off the tank. While it seems like a smart way to squeeze in extra fuel, experts warn it can damage your engine and trigger vapor recovery systems that simply pull excess gasoline back into the pump. That means wasted money and potential long-term vehicle trouble.

Timing matters too. Gas prices usually rise heading into the weekend, making early-week fill-ups a simple way to save. Location also plays a role. Stopping at the closest station may be convenient, but it often isn’t the cheapest option. Using fuel-price apps can help drivers find better deals nearby instead of paying unnecessary markups.

Drivers also frequently skip loyalty programs and rewards credit cards, missing out on valuable discounts. Many major gas chains and credit cards offer cashback, points, or per-gallon savings that add up over time — especially if you refuel at the same locations regularly.

Finally, avoid waiting until your tank is nearly empty, and don’t assume premium gas is always better. Running low can harm your fuel pump, and most cars don’t need premium fuel. Also, keep tires properly inflated to boost mileage and reduce fuel waste.