I remember seeing a thread where someone found out something about their car, some little feature, explained somewhere in the owner's manual. I was into my owner's manual today, looking something up, and found out 2 things I didn't know.

#1 - The dipstick is there as a backup method for checking the oil. The primary method is on your dash and includes a sensor in the oil pan. Turn the key to the on position and wait until you see an oil can in your trip odometer. Push the button on the left twice, and the trip odometer and odometer will tell you if the oil level is OK, 1 qt low, 1.5 qts low...

#2 - If you want to sit in the car for a few minutes after you turn it off, and it's cold outside - if you hit the recirc button, the fan will come on and continue to blow hot air for a little while.

I would bet there are at least a few long time XFire owners who weren't aware of either of these somewhat obscure features.