....a proper/accurate (as much as possible) fuel economy test.....
I'm curious as to what this would be?
I'm thinking something like this:
Pre-conditions
1. Tire pressure set cold to the manufacturer spec (use a digital instrument to measure)
2. Car free of any cargo and passengers
3. The highway testing route (loop) is as flat as possible.
4. The testing loop has a Service Station in between the end points.
5. The total loop is at least 100 km.
6. Perform the test during off-peek hours, calm day (no strong winds), with temp between 10-15 Celsius (?)
Test
1. Drive to the Service Station
2. Fill up the tank to the very top. Take a note of the pump you used.
3. Reset the trip odo.
4. Drive away and get on the highway.
5. Slowly accelerate to 100 km/hr.
6. Set the cruise control to 100 km/hr
7. Drive the test loop.
8. Arrive back at the Service Station
9. Fill up the tank from the same gas pump to the very top.
10. Record how many liters you put in the tank.
11. Record the trip odo.
12. Calculate the fuel consumption.
Post the result here.