In this instructable i'll give you some tips of how to improve your car efficiency in little things that you never notice.
This is my first instructable, you can bear me with my english, because I'm spanish and I can make some little mistakes
Step 1: 1. Let the car warm for itself while you're driving
Don't let the car for a while idling for warming, you can drive wherever and by the time, your car will get warm by itself, and you'll save, time, gas and you won't emmit so much gases to the atmosphere.