Gas Savings

Hello,

i am from germany and use teslafi since April 2020.

I have problems with the gas savings. It does't show the correct results, e.g. Home Charging: 264 kWh used, Costs: 33.05 €. Savings: 0.0 €.

264 kWh / 17 kWh/100km consumption ≈ 1500 km driven. 1500 km / 8l/100 km = 120 l gas consumption x 1,2 € =144 €.

This ist just an estimation but the difference between 0 € and 144 € savings is obvious.

I wonder where the problem ist. Maxbe in the conversion from l in kWh. If 1 l gas equals 8.9 kWh means that my tesla model 3 would use less than 2 l gas on 100 km drive.

But this ist just a problem of dimension. This does not explain why there ist 0,0 € saving.

And on my supercharger charges the problem ist the same. 0,0 € savings.

I need help.

Thank you