I have an '86 325es with about 188k on it an I've been pulling 30 mpg consistently up until a month or so ago. Now I'm pulling low 20s. My question is, will cold weather change my mileage that drastically? I haven't done anything to the car except put new tires on it.
Member of the: over 100,000 miles club
Member of the: 3 Pedal Club
Member of the: 19 years old and still going strong Club