(article continues) ENGINE BAY FRESHENING Over time your C1, C2 and/or C3 (or C4, C5 or even C6, for that matter) engine will acquire a coating of dirt, dust, road grime and grease and some parts will become discolored due to oxidation or gasoline/oil seepage. An hour or two (or three or four or more, if it's really bad) is time well-spent with the improvement you'll see when the job is done. So roll up your sleeves and let's get started. © AllAboutVettes.com 2012. All rights reserved. Reproduction of any material on this website is a violation of copyright and is expressly forbidden without permission. This website has not been prepared, approved or licensed by General Motors. Some words, model names, images and designations herein are the property of the trademark holder and used for identification purposes only. VOLUME 3, ISSUE #2 - FEBRUARY, 2012 This is the “before” shot of our Midyear project car’s engine bay, which is obviously in dire need of some TLC freshening. It looks like it's been really neglected, doesn't it? But, in truth, this vintage Midyear sees only a couple of hundred miles a year, since it spends most of the time in a trailer. However, dampness, humidity and time all take their toll on metal in such conditions.