How to calculate fuel cost. Calculate fuel costs for your car in 3 simple steps: Enter your car reg and fuel type, we'll calculate it's fuel efficiency (mpg). Tell us your mileage for a single trip or year. We’ll give you a price based on one trip, or a break down of weekly and monthly based on your annual mileage.
The Doblo has a drag co-efficient of .30, which is good. Funnily enough I have also discovered, after a five hour run at mostly between 80 and 100mph, that my mpg was excellent, seemingly 40+; better than at 70. However, there was little wind, and what there was was behind me.
How to calculate MPG - Miles per Gallon. Step 1 - Go to the petrol station, make a note of your car’s mileage then fill your tank all the way up. (Enter this mileage into “ Mileage 1 “) Step 2 - Drive normally until you need to fill up again. Step 3 - Go to the petrol station, make a note of your car’s mileage then fill your tank all