Consider whether to fill your tank up full or halfway. Filling up your tank halfway will reduce your car’s weight, increasing your mileage slightly. However, if your nearest gas station is significantly out of the way of your daily route, make sure to take into account the gas spent driving to the station and the value of your time. Don’t top up your tank between fills. It is wasted money and bad for the environment because it invariably forces liquid fuel into the evaporative emissions system, where it overwhelms circuits that route fuel tank vapors to the engine. [5] X Research source Wait until you have a quarter tank, but don’t push this any further. Doing this can extend your gas mileage because you are hauling a lighter fuel load. It also gives you the opportunity to buy more gas if you run across a bargain. However, in cold weather, you run an increased risk of condensation in the fuel tank. Running a car with less than a quarter tank can shorten the life of the electric fuel pump, and running on empty will often destroy the pump.
In California, gas station operators are required to offer free air to customers who purchase fuel.
Cars can have fuel efficiency and keep up with the community standards for speed limits. If you drive at the safe and appropriate speed for the driving conditions, it can save gas and maintain the car better. Speeding can burn more gas. It may require you to stop and start frequently and put extra wear on your brakes.
