I believe the question to be more accurate than the answer. To my knowledge the Imperial gallon is not considered in the trip computer for US/Canadian vehicles. Why would it be? Canadian highways (and the odometer) are in kilometers and fuel is sold in liters.
Fuel is not internally measured in either liters or gallons; it is either a count of pulses from a flow meter or calculated from the open pulse width of the fuel injectors (essentially the fuel ordered by the engine control), and conversions are needed to get either gallons or liters. Similarly, distance is based on a pulse count which is fundamentally tied to wheel revolutions (or transmission output shaft) and requires conversion which compensates for tire revolutions per mile or kilometer and possibly axle ratio. With the ubiquity of ABS, most manufacturers use the ABS wheel sensors. ________________________________ From: Pat Naughtin <[email protected]> To: U.S. Metric Association <[email protected]> Sent: Thu, April 1, 2010 10:51:00 PM Subject: [USMA:47016] Fuel conversions Dear All, http://www.theglobeandmail.com/globe-drive/car-tips/maintenance-and-repairs/imperial-vs-american-how-do-they-measure-up/article1519566 Cheers, Pat Naughtin Author of the ebook, Metrication Leaders Guide, that you can obtain from http://metricationmatters.com/MetricationLeadersGuideInfo.html PO Box 305 Belmont 3216, Geelong, Australia Phone: 61 3 5241 2008 Metric system consultant, writer, and speaker, Pat Naughtin, has helped thousands of people and hundreds of companies upgrade to the modern metric system smoothly, quickly, and so economically that they now save thousands each year when buying, processing, or selling for their businesses. Pat provides services and resources for many different trades, crafts, and professions for commercial, industrial and government metrication leaders in Asia, Europe, and in the USA. Pat's clients include the Australian Government, Google, NASA, NIST, and the metric associations of Canada, the UK, and the USA. See http://www.metricationmatters.com/ to subscribe.
