Many articles will recommend that you buy a gas sipper instead of a guzzler. However, that ignores the fact that it can be difficult to put together the money to buy a new car! So instead, find ways to maximize the mileage you can get with your existing vehicle. This includes doing things like keeping all the junk out of your car (as the extra weight makes the engine have to work harder), planning out the most efficient route around town for your errands, cleaning your car’s air filter, and driving the speed limit, as most engines operate most efficiently between 40 and 60 miles per hour.