You're not providing much (any) information on the car at all for us to comment. So here are questions to ask you. you're getting 12.38mpg
1. Is the 100km that you are using for the calculation based on actual odometer reading? Do you now have 6100km on the car? What octane is super premium?
2. have you used the computer in the car?
3. What version of the car is it? Hybrid? non-hybrid?
4. What was the average speed that you're driving? you can reset the car computer to give you this information.
5. Were you driving by yourself? were you towing anything.
6. Were you constantly driving uphill.
7. Were you constantly driving in 1st or 2nd gear?
8. Have you seen the real time fuel consumption readings in the computer?
1. Is the 100km that you are using for the calculation based on actual odometer reading? Do you now have 6100km on the car? What octane is super premium?
2. have you used the computer in the car?
3. What version of the car is it? Hybrid? non-hybrid?
4. What was the average speed that you're driving? you can reset the car computer to give you this information.
5. Were you driving by yourself? were you towing anything.
6. Were you constantly driving uphill.
7. Were you constantly driving in 1st or 2nd gear?
8. Have you seen the real time fuel consumption readings in the computer?
