Guys like me n' Fixer take looking under the hood of our rigs for granted. It's a given. After all, since we have to fix anything that goes wrong ourselves, instead of just throwing money at it like most folks, we have a vested interest in catching problems while they are small. You do too. Read this article on MSN. It will give you the basics. If you are a granny, handicapped, or a pretty young girl who doesn't want to get out of the car because you forgot to dress this morning, the station attendant will be glad to help, or me n' Fixer, if we're there.