When most people hear the word “pollution,” they think of big city buses letting out clouds of black air, or third world countries where the sky is thick with dust. Few people understand that even normal cars can be the cause of a great deal...

The average smog inspection price will vary shop to shop. It will normally range anywhere between $29.95 to $89.95 depending on the county you live in and the type of smog inspection your vehicle requires. This price may or may not include the State's Certificate...

Do Car Fuel Emissions Regulation Vary from State to State? Car fuel emissions standards are established by the federal government and each state must adhere to them. However, the state of California, during 1967, established its own regulatory agency to fight against pollution generated by automobiles....

If you have discovered you need to replace your knock sensor to pass your car emission test, you need to have a pretty good working knowledge of how to work on cars to do this. Otherwise the money you think you might save doing it...