On 5/9/06, Herbert Graf wrote: > > Considering how abrupt the change in mileage is I wouldn't be too > surprised if someone came up to me and told me the computer has a "cold > weather" profile and a "warm weather" profile, and that the cold weather > profile gives up certain things (mileage) for other uses (i.e. getting > the car warmed up quicker to prevent damage to the engine). Could it be the change in winter gas formulations to summer gas? http://www.metrompg.com/posts/winter-mpg.htm -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist