If you own a health insurance plan

Use A / C only on the highway. At lower speeds, open the windows.
This increased drag and reduces fuel efficiency, but not as much as the AC at low speeds (35. -40 mph) Even better, at any speed, turn on the fan or open when it's cold outside windows only a few inches.
Con Air - as widely used - is known to use about 8% of the fuel you put in your health insurance plan.
In neutral if you are not comfortable with downshifting. standard transmission vehicles may save gas by shifting into neutral when going down steep enough to maintain speed hillsides point (although the engine brake is safer, with . the sharpest falls)

Do not do it in a hybrid health insurance plan, they use this "motor regenerative braking" to generate electricity and recharge. .
NOTE: This strategy will result in more wear on your brakes none of these strategies is normal recommended for automatic health insurance plan s.

Additionally, if you own a health insurance plan   with fuel injection, it is more efficient to keep the health insurance plan   at high speed when descending hills.
Simply take your foot off the gas.

Park in the shade really Gasoline evaporates into right out of your tank, and it does so faster when you park directly in the sun -.
Summer or Winter Parking in the shade also keeps cold inside, and you'll need less A / C to cool off when you get back in.

 If not no shade available, park so that your fuel tank (the real tank under the health insurance plan, not the valve to fill it) is facing away from direct sun