September 4th, 2008 by Richard Lord
Sustainable Guernsey wishes to help Guernsey residents cut down their use of finite fossil fuels which will reduce carbon dioxide emissions and contribute to a healthier atmosphere and a healthier ocean.
To help accomplish this goal Sustainable Guernsey is developing a fuel efficiency table for vehicles driven on Guernsey roads.
We need your help to build this vehicle fuel efficiency table
We know that the vehicle manufacturers’ miles per gallon (mpg) estimates for city and motorway driving don’t often coincide with the mpg data produced by the short journeys and the stop and start driving we experience in Guernsey, which is why Sustainable Guernsey wants to publish a continually updated table of vehicle fuel efficiency for Guernsey driving conditions.
We hope this table will grow large enough to include a majority of the vehicles on Guernsey roads so that you will be able to compare the fuel efficiency of your vehicle with other vehicles and compare the fuel efficiency of your driving with other drivers driving the same vehicle.
We hope this table will encourage you to drive in a manner which improves your vehicle’s fuel efficiency. For tips on how to achieve better fuel efficiency look under Further Reading on the right side of this page.
Vehicle fuel efficiency can vary by as much as 20% from one tank of fuel to another and between drivers driving the same vehicle. This can depend on how aggressively someone drives and how much extra weight the vehicle carries.
What we would ask you to do (directions provided by Meriel Lenfestey)
Next time you fill up your vehicle – fill it right up and record the odometer reading (miles travelled) or turn to zero your ‘trip odometer’. Run your car normally until you want to fill up again. Fill the fuel tank right up again (that’s important) making a note of the amount of fuel you buy (usually printed on the receipt). At the same time make a note of the odometer reading (miles travelled) or the trip odometer reading if you turned it to zero when you last filled up. After recording the miles travelled on a piece of paper please reset your trip odometer to zero for the next tank of fuel.
Please email the information (fuel consumed, miles driven, and type of fuel used (premium or regular unleaded or diesel) with the vehicle make, model and the year of manufacture to email@example.com with ‘MPG’ in the email’s subject line. No personal information will be kept about the vehicle owner.
Please submit the information each time you fill up your fuel tank, for as many times as you are willing to supply the information, so that an average MPG for each make and model of car can be established. In return Sustainable Guernsey will email to you the most up-to-date table as an Excel spreadsheet or if you prefer as a JPEG image of the spreadsheet.
Please note that Sustainable Guernsey would prefer the raw data of ‘miles driven’ and ‘litres of fuel consumed’ rather than a read-out from your vehicle’s computer. Vehicle computer accuracy can vary and the spreadsheet requires the ‘raw’ data to make the calculations.
Please do not submit data if some of the vehicle’s fuel was consumed overseas. This table is to establish fuel efficiency for Guernsey driving conditions so only data from vehicle fuel consumed in Guernsey should be included in the table.
The spreadsheet is set up to convert litres to Imperial gallons and miles to kilometres so either set of measurements can be submitted.
The Guernsey vehicle fuel efficiency table contains as of 1 October 2008 87 records for 35 vehicles. Average MPG for all records is 30.86 mpg. The current table is available as a PDF file.