Although new vehicles can run longer on the same oil than older ones can, and improvements in motor oil have extended its efficiency over longer periods of time, to be on the safe side, you might want to change your oil every 5,000 miles or every six months, whichever comes first.
A fog light has a special lens which diffuses the light and instead of sending a direct beam forward it scatters light broadly to both the front and and slightly off-set to either side of the vejicle. Many drivers put fog lights on thinking they are improving visibility when it is not foggy. This is wrong!!!
Radiation fog is fog that is due to the cooling of the earth's surface at night. In the evening, the earth radiates off heat absorbed from the Sun's light during the day. As the warm air rises, the air near the earth's surface becomes cooler. Cold air can hold less water vapor than warm air, and the water vapor in the air near the surface condenses, forming radiation fog. Below is an image of radiation fog occurring over a field.