It is very important to keep your gas tank full in the winter, because if you don't, you will have an excessive amount of air in your tank. Since condensation can occur when air is present, you will end up with condensation happening in your gas tank when it is not full. This condensation is harmless enough for the most part, until however it freezes and causes your fuel lines to freeze up as well. When that happens, this certainly is not harmless, as you will have a BMW vehicle that won't start and also some expensive repairs to deal with in the future.
By keeping your gas topped up this winter season, you can avoid lots of car trouble for your BMW. Come visit our factory certified service center here at BMW of Sioux Falls if you'd like to get your vehicle ready for the cold winter weather ahead and get it tuned up so that you can have peace of mind that your car will be road worthy this winter.