John Music wrote:I'm getting 62mpg!!! Car computer very accurate so I won't bother with logging my expenditure in future.
May I ask how you have proved that the car computer is very accurate.
I have had 5 new cars in the last 9 years - and not one of them were. My present Venga's trip recorder is 6.5% optimistic.
I always brim each tank - and I mean brim until the point of over-flowing to calculate the mpg from the distance travelled and the exact amount of fuel added.
I have also checked the accuracy of the odometer against the Kilometre boards over the length of the M5 motorway and found it reads 2.5% under. By that I mean when the odometer shows the car has travelled 100 miles - it has actually done 102.5 miles. I have a spreadsheet that automatically calculates the economy of each tank. I simply input the odometer reading and the amount of fuel added and it computes the exact mpg for that tank and the mpg since I bought the car.
I will be doing the same when I get my Niro