Saturn S series Twin Cam cylinder head had now featured a new roller-rocker setup with hydraulic tappets and roller cams replacing the conventional bucket lifter setup of the previous engine in the S series. Also introduced for the 1999 model year S-series vehicles that were sold in California was a different type of an exhaust manifold that housed an upstream catalytic converter (this converter had heated up much faster than the conventional unit, and it had also decreased exhaust emissions faster as well), and it also had provisions for an air-injection reaction system (This had injected fresh air into the exhaust to reduce
Emily Vanhoutte this because exhaust gases are the main sources of air pollution. Actually, many people are exposed to exhaust emissions every day in different ways: motor vehicles running on fuel and diesel, trains, ships, electric generators, factories and plants. When you take the bike and leave your car at home you reduce the air pollution and save our planet. 4. I did a campaign to promote windmills. A windmill is a machine that converts the energy of wind. Green energy is important to save the health of our planet. Clean electricity generated from the wind is important for our future but