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!!!
Some cars are also fitted with front fog lights. Although it's not a legal requirement to use your fog lights if you're driving in fog, you really should to make sure other motorists can see you. Never use your fog lights when visibility is clear though, especially at night when other drivers can easily be dazzled.