Friends, As you would have seen my attempts to present the technical topics in an easy to understand manner under the banner "The Layman's Perspective", I would request you to suggest a topic for a future article. I am already writing the next installment on the Gearbox & Gear Ratios, so we can discuss other areas related to automobiles. I am most comfortable with mechanicals. We can go with the majority of suggestions. As always, I do not profess to be an expert in everything mechanical. But automobiles remain a big passion for me and I love to learn about them and discuss. For an article to be written by me is not the final word on the matter. To me, that is just the initiation of a fruitful discussion . This way, everyone participates and comes across information shared by multitude of members. Let the suggestions roll! Gurjinder.