Tips to Get Better Gas Mileage in Winter Fuel economy drops during the winter months. Do you know that the car gas mileage gets 10% - 12% low during winters? Winter is here and knowing ways to improve will help save gas and money in the long run. Tips to Improve Fuel Economy in Winter · Park Vehicle in Warm Place Always park the car in a warm place. The garage is an ideal location. If you have to park outdoors, choose a spot that is close to a building. The heat of the building will keep the vehicle warm. If the car is even slightly warm, it will enable you to start it up fast. This means less energy demand on the engine. · Longer Trips Avoid short trips. A cold engine works hard and uses more gas to function efficiently. Combine multiple short trips into longer ones. A longer trip will keep the engine warm and improve gas mileage. · Minimize Idling Minimize idling the vehicle to warm it up. Drive off slowly after 2