What do you want to find out?
When refueling / charging abroad, the question arises, what amount of gas should be included in the mileage log?
When paying with foreign currency for a refueling / charging, we recommend converting the amount paid to USD at the given daily average exchange rate.
You can also choose to enter that you payed 0 USD for the refueling / charging. Your Accountant can later calculate your accumulated fuel expenses based on your refueling / charging receipts anyway. The amount of refueling / charging on the mileage log is for information purposes only.