8. Get out of a Lease
If your lease is in its final six months, you can sometimes buy the car outright at a huge discount. Otherwise, a company such as Swapalease can help you pawn off your lease on someone who is willing to take on the payments.
9. Give it a Rest
Shift into neutral at traffic lights. The transmission doesn’t care, and it makes life a bit easier for the engine. This technique reduces the amount of heat carried by the cooling system and can increase gas mileage a tick or two.
10. Jump start a Dead Battery
if your battery terminals are corroded, crack open a can of cola and pour it directly onto the battery terminals. The acid in the cola will bubble away the corrosion, improving both your connection and the odds of a successful jump-start. Once you’re home, run water over the battery to remove the cola residue and dry it with an old rag.
11. Roll ’em Up
Nixing the AC lowers fuel consumption, but only if you’re not driving on the highway. Otherwise, opening the windows uses more gas because of the drag you’re putting on the car. Instead, run your AC in recirculation mode, which recycles some already cooled air from inside the car, requiting less energy than completely cooling the air that comes in from outside.